I also have this issue, in 1.18.2 (presumably also later versions), notably using the same configuration as OP, as in, a Linux-capable Chromebook running Minecraft in the "crostini" Linux debian-like enviroment.
This bug forces me to restart the game when I accidentially press the key combination. The bug occurs on the Menu screen as well as in-game. When I'm in game I can still hear sounds when I move around (so minecraft isn't completly frozen) but the view isn't updated and flickers constantly. Only way I have found to get out is to quit the game.
restcoser
I also have this issue, in 1.18.2 (presumably also later versions), notably using the same configuration as OP, as in, a Linux-capable Chromebook running Minecraft in the "crostini" Linux debian-like enviroment.
This bug forces me to restart the game when I accidentially press the key combination. The bug occurs on the Menu screen as well as in-game. When I'm in game I can still hear sounds when I move around (so minecraft isn't completly frozen) but the view isn't updated and flickers constantly. Only way I have found to get out is to quit the game.