Unfortunately the menu contents freak out when new app is installed. As before only Compact Menu and Classic Menu applets have everything in proper categories as in editor, but this weird 'collection' category is still there. In the Brisk Menu there's a mess.
Edit: After reseting the panels it goes back to normal, but after reboot and login it's wrong again. 😅
Edit: And it seems to happen only when panel is modified from the Default layout. When I reset the the panel to default, don't modify it to my layout and reboot then menu looks normal, without this weird 'collection' category in all of the available menu applets. 🤔