I started using dwm for the very reason OP asked. I wanted to remove the window decoration, have a more simplified view, and have full control over what my windows looked like. It works for exactly what I needed/wanted.

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.