Is there an alternative linux mini-OS for this ALDI beamer? Has anybody tried modding one with a Noctua fan?

Hey, I just bought this ALDI LED beamer for 39,99 €:

https://www.aldi-sued.de/produkt/bauhn-hd-led-projektor-000000000000708495

I thought I would just do it for shit and giggles to have a projector to watch shit on the ceiling above my bed, but this thing is shockingly good... for the most part.

It has keystone integrated so it automatically adjusts the angle and cut if you change the angle up to a certain degree, the picture quality is good...

BUT...

I don't trust the software. It immediately asked me to connect it to the internet.

I don't want to connect some sketchy 40 € China beamer to my WLAN. Plus, I don't want the installed official YouTube apps etc. - I want it to basically run Firefox or Waterfox with uBlock Origin, DeArrow, Sponsorblock, No Shorts ("Shorts für YouTube ausblenden"), return YouTube Dislike and so on...

Has anybody successfully modded that thing to run with any kind of a linux OS?

Plus, that thing is LOUD.

Unfortunately, if I point that thing directly upwards towards my ceiling, the cooling performance is bad, because the base has no air vents and not a good airflow to the sides. The exhaust feels hot.

So to make this things feasible, it would definitely need a Noctua fan. Has anyone already attempted that hardware modification?

I screwed off the 1 screw at the back, but the backplate still wouldn't open. So I have no idea how to get it open.

https://redd.it/1tu7ljm
@r_linux