Wouldn’t rsync be able to do this if their on the same network?

I’ve had good luck with Fedora on a 2013 MacBook Air. Granted I need the nonfree repository, but it does the job.

Switch to dwm. https://dwm.suckless.org/

I run Fedora 41 with Budgie on a low end Chromebook (sounds the same as you, Celeron N3060, 4 GB ram). Runs fine with no issues. I don’t do any power computing, but Firefox, LibreOffice, GIMP are fine. It isn’t my work computer, mainly just in the living room couch computer.