I’d just like to interject for a moment. What you’re refering to as KDE, is in fact, KDE Plasma.

Anyway, I use Gnome but if you are used to Plasma, there is no need to make things harder by using Gnome on a device and Plasma on another. Just stick to Plasma.

YouTube always re-encodes the video

You are right. For example you can upload an avi to YouTube, but they will never host and stream an avi.

YouTube automatically generate videos in lower resolution of the one uploaded.
So when you watch a 4k video and switch to 1080, you are no longer watching the original video but a re-encoded one by YouTube itself which could have more artifacts since it’s resized and compressed.

I dunno the exact specs (like bit rate, etc.), someone will probably add them in another reply.

Is it Debian Sid?

Would creating a Lemmy instance with that content be enough? Doing so the already enough large Lemmy community could already interact with it.