Description of problem:
The whole (Wayland) session crashed into GDM after opening Activities Overview (using Super key). This was in system journal:

bře 19 15:54:42 fedora gnome-shell[3281]: JS ERROR: TypeError: method Gio.File.delete_async: At least 3 arguments required, but only 2 passed
                                           _handleLockScreenWarning@resource:///org/gnome/shell/ui/main.js:331:24
                                           _initializeUI/<@resource:///org/gnome/shell/ui/main.js:303:13
                                           _startupAnimationComplete@resource:///org/gnome/shell/ui/layout.js:741:14
                                           onComplete@resource:///org/gnome/shell/ui/layout.js:708:39
                                           runStartupAnimation/<@resource:///org/gnome/shell/ui/overview.js:661:13
                                           onComplete@resource:///org/gnome/shell/ui/overviewControls.js:791:31
                                           _makeEaseCallback/<@resource:///org/gnome/shell/ui/environment.js:85:13
                                           _easeActor/<@resource:///org/gnome/shell/ui/environment.js:168:64

This happened on a fully updated Fedora 34 Test Day image installation in GNOME Boxes.

Version-Release number of selected component (if applicable):
gnome-shell-40.0~rc-1.fc34.x86_64

How reproducible:
Randomly.

Steps to Reproduce:
1. Install Fedora 34 and fully update it.
2. Try opening Activities Overview using keyboard.