diff --git a/packages/playwright-core/src/server/electron/electron.ts b/packages/playwright-core/src/server/electron/electron.ts
index 1a52a913a1..80ce04d809 100644
--- a/packages/playwright-core/src/server/electron/electron.ts
+++ b/packages/playwright-core/src/server/electron/electron.ts
@@ -135,12 +135,13 @@ export class Electron extends SdkObject {
     controller.setLogName('browser');
     return controller.run(async progress => {
       let app: ElectronApplication | undefined = undefined;
+      // --remote-debugging-port=0 must be the last playwright's argument, loader.ts relies on it.
       const electronArguments = ['--inspect=0', '--remote-debugging-port=0', ...args];
 
       if (os.platform() === 'linux') {
         const runningAsRoot = process.geteuid && process.geteuid() === 0;
         if (runningAsRoot && electronArguments.indexOf('--no-sandbox') === -1)
-          electronArguments.push('--no-sandbox');
+          electronArguments.unshift('--no-sandbox');
       }
 
       const artifactsDir = await fs.promises.mkdtemp(ARTIFACTS_FOLDER);
diff --git a/packages/playwright-core/src/server/electron/loader.ts b/packages/playwright-core/src/server/electron/loader.ts
index 3180abc013..98bd92d457 100644
--- a/packages/playwright-core/src/server/electron/loader.ts
+++ b/packages/playwright-core/src/server/electron/loader.ts
@@ -17,9 +17,10 @@
 const { app } = require('electron');
 const { chromiumSwitches } = require('../chromium/chromiumSwitches');
 
-// [Electron, -r, loader.js, --inspect=0, --remote-debugging-port=0, ...args]
-process.argv.splice(1, 4);
-
+// Always pass user arguments first, see https://github.com/microsoft/playwright/issues/16614 and
+// https://github.com/microsoft/playwright/issues/29198.
+// [Electron, -r, loader.js[, --no-sandbox>], --inspect=0, --remote-debugging-port=0, ...args]
+process.argv.splice(1, process.argv.indexOf('--remote-debugging-port=0'));
 
 for (const arg of chromiumSwitches) {
   const match = arg.match(/--([^=]*)=?(.*)/)!;