I can only think of one thing you could do with this much power ...... run an LLM

Experiment with arch, void (musl), Nixos and atomic distros like fedora silverblue, bazzite

I mostly use a download manager for parallel downloading a file. (downloading multiple parts of a single file at the same time).

Same here

sudo apt update && sudo apt upgrade

According to Debian Wiki VLC has limited support of va-api for hardware acceleration. Try fixes in the wiki. It might help.

Maybe try a full update. Partial updates are problematic.

You should change the title, as it is the continuation of the story. People will think its the same story being repeated.

Many popular foss apps use Open collective

Yes, you will have bugs. But those are fixable with toggles in the TrebleApp. And Gapps are included.

Broadcom is also closed source (I think). I have to use closed source drivers for my broadcom wireless adapter on Linux.

Even before the HLS bug, libretube was finky, I think newpipe also doesn't use proxy so I'm fine with it.

You are missing the point. The point is that there is no need for such a device, a simple android app can do everything that rabbit r1 does.