Although usually I am all for adressing your own impact as well and not only blaming big corporations (they are mostly at fault, but they won’t change a thing as long as they can still blame consumers), I think it is important to aknowledge here how dependent individuals can be on cars. No one can single-handedly revolutionize the public transport and some areas, especially in more rural regions, really need forms of individual transport at present. EVs are not solving the big issues, but in regards to carbon impact you can compensate for their production quite quickly with the CO2 you save in comparison to an ICE car (depending on your local energy mix of course). Burning fuel will never be carbon neutral, using electric energy for transportation can be eventually. Don’t disregard all the solutions which are not perfect but try for gradual improvement.
I tried this with zeroPi and jellyfin, bit the Pi seemed constantly overwhelmed with displaying videos, so I got about a frame every 2 seconds (might have been a pi3b). Have you got any clue what the issue might be? It depended a lot on the particular file I wanted to play as well though, but I wasn’t able to find a pattern. Of two matroska/mp4 files one worked well, the other stuttered as hell.