diff --git a/lib/asar/fs-wrapper.ts b/lib/asar/fs-wrapper.ts
index 1feabb16fc90..d074e9aa7a85 100644
--- a/lib/asar/fs-wrapper.ts
+++ b/lib/asar/fs-wrapper.ts
@@ -60,8 +60,8 @@ const splitPath = (archivePathOrBuffer: string | Buffer) => {
 // Convert asar archive's Stats object to fs's Stats object.
 let nextInode = 0;
 
-const uid = process.getuid != null ? process.getuid() : 0;
-const gid = process.getgid != null ? process.getgid() : 0;
+const uid = process.getuid?.() ?? 0;
+const gid = process.getgid?.() ?? 0;
 
 const fakeTime = new Date();
 
diff --git a/lib/browser/api/auto-updater/squirrel-update-win.ts b/lib/browser/api/auto-updater/squirrel-update-win.ts
index 5d8a998b4e1c..800873082169 100644
--- a/lib/browser/api/auto-updater/squirrel-update-win.ts
+++ b/lib/browser/api/auto-updater/squirrel-update-win.ts
@@ -68,7 +68,7 @@ const spawnUpdate = function (args: string[], detached: boolean, callback: Funct
     if (code !== 0) {
       // Disabled for backwards compatibility:
       // eslint-disable-next-line standard/no-callback-literal
-      return callback(`Command failed: ${signal != null ? signal : code}\n${stderr}`);
+      return callback(`Command failed: ${signal ?? code}\n${stderr}`);
     }
 
     // Success.
diff --git a/lib/browser/api/desktop-capturer.ts b/lib/browser/api/desktop-capturer.ts
index 81af3a1eeb5f..fc27bbb86c63 100644
--- a/lib/browser/api/desktop-capturer.ts
+++ b/lib/browser/api/desktop-capturer.ts
@@ -9,8 +9,7 @@ let currentlyRunning: {
 
 // |options.types| can't be empty and must be an array
 function isValid (options: Electron.SourcesOptions) {
-  const types = options ? options.types : undefined;
-  return Array.isArray(types);
+  return Array.isArray(options?.types);
 }
 
 export async function getSources (args: Electron.SourcesOptions) {
diff --git a/lib/browser/api/touch-bar.ts b/lib/browser/api/touch-bar.ts
index 9e5a43468daa..e48cc673a11c 100644
--- a/lib/browser/api/touch-bar.ts
+++ b/lib/browser/api/touch-bar.ts
@@ -395,7 +395,7 @@ class TouchBar extends EventEmitter implements Electron.TouchBar {
     this.on('change', changeListener);
 
     const escapeItemListener = (item: Electron.TouchBarItemType | null) => {
-      window._setEscapeTouchBarItem(item != null ? item : {});
+      window._setEscapeTouchBarItem(item ?? {});
     };
     this.on('escape-item-change', escapeItemListener);
 
diff --git a/lib/browser/guest-view-manager.ts b/lib/browser/guest-view-manager.ts
index 2d88a0a017ea..b413d35c3a9f 100644
--- a/lib/browser/guest-view-manager.ts
+++ b/lib/browser/guest-view-manager.ts
@@ -38,8 +38,8 @@ function makeWebPreferences (embedder: Electron.WebContents, params: Record<stri
       : null;
 
   const webPreferences: Electron.WebPreferences = {
-    nodeIntegration: params.nodeintegration != null ? params.nodeintegration : false,
-    nodeIntegrationInSubFrames: params.nodeintegrationinsubframes != null ? params.nodeintegrationinsubframes : false,
+    nodeIntegration: params.nodeintegration ?? false,
+    nodeIntegrationInSubFrames: params.nodeintegrationinsubframes ?? false,
     plugins: params.plugins,
     zoomFactor: embedder.zoomFactor,
     disablePopups: !params.allowpopups,