I came here because my work computer keep shoving Copilot in my face and want to turn it off.
I use Ubuntu at home and it has pretty good software support, though their app store installs things using Snaps, which sometimes has weird permissions issues.
To install things I usually use apt.
sudo apt install firefox
sudo apt install signal
sudo apt install libreoffice
Debian is an even cleaner OS though it assumes you are already familiar with Linux.
I hear very good things about Linux Mint and PopOS and intend to give those a spin next time I'm setting up a machine.
All in all they are all very good and are designed to keep you in control of your computer. No running weird ads or creepy analytics.