The RB Pi uses an ARM RISC processor (got my first ARM processor in 1989 in the Acorn Archimedes). They work very differently and don’t need as much power and storage. I have an RPi 3B+, I wonder If Endeavour OS ARM would work on it, that would be wild, but it has 1 GB of RAM. Maybe with a Windows Manager, it might work.
I also have a Pinebook Pro, but it’s damaged from the rain (somebody forgot to bring it in 
) so its not working now.