From the top of my head I can think two:

• Battle block theater is a platformer puzzle game and really fun to play in local coop, and it runs on almost anything.
• Sonic All stars racing is a really fun Mario kart like racing game with local multiplayer.

Not sure about Linux support though, so check it out first, but both are relatively old titles so I think they have a good chance to run.

It’s hard to predict the outcome in such a chaotic event but starlink alone already does 100k+ collision avoidance maneuvers each year (can’t remember the exact number but is more than one every 2 minutes). It’s highly unlikely that we would be able to accurately track the newly formed debris of dozens of satellites blowing up and adjust the orbit of (potentially) hundreds of satellites in a few minutes.

Destroying a few dozen satellites would probably kickstart a Kessler síndrome.