diff --git a/lib/agent.js b/lib/agent.js
index 636e72c65b2..9a07708654a 100644
--- a/lib/agent.js
+++ b/lib/agent.js
@@ -42,7 +42,7 @@ class Agent extends DispatcherBase {
       connect = { ...connect }
     }
 
-    this[kInterceptors] = options.interceptors && options.interceptors.Agent && Array.isArray(options.interceptors.Agent)
+    this[kInterceptors] = options.interceptors?.Agent && Array.isArray(options.interceptors.Agent)
       ? options.interceptors.Agent
       : [createRedirectInterceptor({ maxRedirections })]
 
diff --git a/lib/api/api-connect.js b/lib/api/api-connect.js
index 9a144fb62ba..d19e67f69a2 100644
--- a/lib/api/api-connect.js
+++ b/lib/api/api-connect.js
@@ -96,7 +96,7 @@ function connect (opts, callback) {
     if (typeof callback !== 'function') {
       throw err
     }
-    const opaque = opts && opts.opaque
+    const opaque = opts?.opaque
     queueMicrotask(() => callback(err, { opaque }))
   }
 }
diff --git a/lib/api/api-pipeline.js b/lib/api/api-pipeline.js
index 7b48e952b12..f5112415bf7 100644
--- a/lib/api/api-pipeline.js
+++ b/lib/api/api-pipeline.js
@@ -100,7 +100,7 @@ class PipelineHandler extends AsyncResource {
       read: () => {
         const { body } = this
 
-        if (body && body.resume) {
+        if (body?.resume) {
           body.resume()
         }
       },
diff --git a/lib/api/api-request.js b/lib/api/api-request.js
index 39aa4c32cce..285c76de241 100644
--- a/lib/api/api-request.js
+++ b/lib/api/api-request.js
@@ -171,7 +171,7 @@ function request (opts, callback) {
     if (typeof callback !== 'function') {
       throw err
     }
-    const opaque = opts && opts.opaque
+    const opaque = opts?.opaque
     queueMicrotask(() => callback(err, { opaque }))
   }
 }
diff --git a/lib/api/api-stream.js b/lib/api/api-stream.js
index 58c74188420..0998c9f2da1 100644
--- a/lib/api/api-stream.js
+++ b/lib/api/api-stream.js
@@ -148,7 +148,7 @@ class StreamHandler extends AsyncResource {
 
     const needDrain = res.writableNeedDrain !== undefined
       ? res.writableNeedDrain
-      : res._writableState && res._writableState.needDrain
+      : res._writableState?.needDrain
 
     return needDrain !== true
   }
@@ -212,7 +212,7 @@ function stream (opts, factory, callback) {
     if (typeof callback !== 'function') {
       throw err
     }
-    const opaque = opts && opts.opaque
+    const opaque = opts?.opaque
     queueMicrotask(() => callback(err, { opaque }))
   }
 }
diff --git a/lib/api/api-upgrade.js b/lib/api/api-upgrade.js
index 52767a36e4a..bed946fdca9 100644
--- a/lib/api/api-upgrade.js
+++ b/lib/api/api-upgrade.js
@@ -97,7 +97,7 @@ function upgrade (opts, callback) {
     if (typeof callback !== 'function') {
       throw err
     }
-    const opaque = opts && opts.opaque
+    const opaque = opts?.opaque
     queueMicrotask(() => callback(err, { opaque }))
   }
 }
diff --git a/lib/balanced-pool.js b/lib/balanced-pool.js
index 10bc6a47baf..cf06fcacedc 100644
--- a/lib/balanced-pool.js
+++ b/lib/balanced-pool.js
@@ -53,7 +53,7 @@ class BalancedPool extends PoolBase {
       throw new InvalidArgumentError('factory must be a function.')
     }
 
-    this[kInterceptors] = opts.interceptors && opts.interceptors.BalancedPool && Array.isArray(opts.interceptors.BalancedPool)
+    this[kInterceptors] = opts.interceptors?.BalancedPool && Array.isArray(opts.interceptors.BalancedPool)
       ? opts.interceptors.BalancedPool
       : []
     this[kFactory] = factory
diff --git a/lib/client.js b/lib/client.js
index 7eb2d196d1b..ff23b772909 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -250,7 +250,7 @@ class Client extends DispatcherBase {
       })
     }
 
-    this[kInterceptors] = interceptors && interceptors.Client && Array.isArray(interceptors.Client)
+    this[kInterceptors] = interceptors?.Client && Array.isArray(interceptors.Client)
       ? interceptors.Client
       : [createRedirectInterceptor({ maxRedirections })]
     this[kUrl] = util.parseOrigin(url)
diff --git a/lib/core/util.js b/lib/core/util.js
index 6a692465893..55bf9f49822 100644
--- a/lib/core/util.js
+++ b/lib/core/util.js
@@ -187,7 +187,7 @@ function isDestroyed (stream) {
 }
 
 function isReadableAborted (stream) {
-  const state = stream && stream._readableState
+  const state = stream?._readableState
   return isDestroyed(stream) && state && !state.endEmitted
 }
 
diff --git a/lib/fetch/response.js b/lib/fetch/response.js
index 37ac53015e8..69aba18ba6e 100644
--- a/lib/fetch/response.js
+++ b/lib/fetch/response.js
@@ -238,7 +238,7 @@ class Response {
     webidl.brandCheck(this, Response)
 
     // 1. If this is unusable, then throw a TypeError.
-    if (this.bodyUsed || (this.body && this.body.locked)) {
+    if (this.bodyUsed || this.body?.locked) {
       throw webidl.errors.exception({
         header: 'Response.clone',
         message: 'Body has already been consumed.'
diff --git a/lib/handler/RetryHandler.js b/lib/handler/RetryHandler.js
index 05d55792c1f..2a2f878c00f 100644
--- a/lib/handler/RetryHandler.js
+++ b/lib/handler/RetryHandler.js
@@ -148,7 +148,7 @@ class RetryHandler {
       return
     }
 
-    let retryAfterHeader = headers != null && headers['retry-after']
+    let retryAfterHeader = headers?.['retry-after']
     if (retryAfterHeader) {
       retryAfterHeader = Number(retryAfterHeader)
       retryAfterHeader = Number.isNaN(retryAfterHeader)
diff --git a/lib/mock/mock-agent.js b/lib/mock/mock-agent.js
index 4b29cd0112f..3d26a6a65ba 100644
--- a/lib/mock/mock-agent.js
+++ b/lib/mock/mock-agent.js
@@ -29,10 +29,10 @@ class MockAgent extends Dispatcher {
     this[kIsMockActive] = true
 
     // Instantiate Agent and encapsulate
-    if ((opts && opts.agent && typeof opts.agent.dispatch !== 'function')) {
+    if ((opts?.agent && typeof opts.agent.dispatch !== 'function')) {
       throw new InvalidArgumentError('Argument opts.agent must implement Agent')
     }
-    const agent = opts && opts.agent ? opts.agent : new Agent(opts)
+    const agent = opts?.agent ? opts.agent : new Agent(opts)
     this[kAgent] = agent
 
     this[kClients] = agent[kClients]
diff --git a/lib/pool.js b/lib/pool.js
index e3cd3399e6b..e238ac3d94b 100644
--- a/lib/pool.js
+++ b/lib/pool.js
@@ -63,7 +63,7 @@ class Pool extends PoolBase {
       })
     }
 
-    this[kInterceptors] = options.interceptors && options.interceptors.Pool && Array.isArray(options.interceptors.Pool)
+    this[kInterceptors] = options.interceptors?.Pool && Array.isArray(options.interceptors.Pool)
       ? options.interceptors.Pool
       : []
     this[kConnections] = connections || null
diff --git a/lib/proxy-agent.js b/lib/proxy-agent.js
index 54b078a7d62..382be2a5940 100644
--- a/lib/proxy-agent.js
+++ b/lib/proxy-agent.js
@@ -43,7 +43,7 @@ class ProxyAgent extends DispatcherBase {
     super(opts)
     this[kProxy] = buildProxyOptions(opts)
     this[kAgent] = new Agent(opts)
-    this[kInterceptors] = opts.interceptors && opts.interceptors.ProxyAgent && Array.isArray(opts.interceptors.ProxyAgent)
+    this[kInterceptors] = opts.interceptors?.ProxyAgent && Array.isArray(opts.interceptors.ProxyAgent)
       ? opts.interceptors.ProxyAgent
       : []
 
diff --git a/lib/timers.js b/lib/timers.js
index 5782217a0e0..23a6d2b5223 100644
--- a/lib/timers.js
+++ b/lib/timers.js
@@ -39,7 +39,7 @@ function onTimeout () {
 }
 
 function refreshTimeout () {
-  if (fastNowTimeout && fastNowTimeout.refresh) {
+  if (fastNowTimeout?.refresh) {
     fastNowTimeout.refresh()
   } else {
     clearTimeout(fastNowTimeout)