Could they just copy how iOS does interaction? Different menus like the share menu for example or the password manager menu? I can’t really think of what interaction I need besides maybe ide or terminal stuff.. are both of those systems restrained by qubes? Every bash command is in its own vm? Even so the terminal should still be able to redirect outputs between programs so that can’t really be a problem can it?

Is chromes process per tab model restricted? Forking and piping in general perhaps?