The notifications are coming from Google Play Services.
Look into GrapheneOS. They have a sandboxed play services implementation, and you can have multiple sandboxed users, e.g. one for foss apps, one for google and proprietary apps.
Also try TrackerControl on f-droid, it lets you block trackers from apps. You’ll still have Google to worry about though.
Yeah I used to have an old Windows MR headset until it stopped working (and I switched to linux)
It was a lot of fun, and I do miss beat saber.
But I’m not going to spend a thousand dollars on an outdated index, or put facebook spyware on my face. If Valve or some other company comes out with something modern without proprietary bs, I’d buy it in a heartbeat.
Here are my recommendations:
Bad North: Real time island defense with procedural islands and character permadeath.
Inscryption: Roguelite deck builder (but it’s more than that, hard to describe without spoilers. just play it)
I realize these might not be the exact type of roguelike you’re looking for, but I highly recommend them.
I think it’s going to be a long time before I upgrade my graphics card with these prices.