Yes, its replacement for work profiles but better. Its managed by the system (android) and not by an app. That makes it more isolated. Its just like different users on Windows and Linux.
Uninstall or disable as much default apps as you can
Install Simple Mobile Tools or other opensource alternative from F-Droid
Install everything else you need
Use openaource apps from fdroid, or if you really have to then use Aurora store. For office use collabora office, for youtube newpipe, video vlc, etc. NEVER LOG IN TO GOOGLE/SAMSUNG ACCOUNT ON ANY APP except Aurora store. For any other recommendation/alternative just aak me.
Thank you for your detailed answer! Im already using a minimalist distro (arch) with (almost) no problems. Before that I used Fedora. Becase of that and your recommendation I will probably switch to silverblue. Im a little scared of selinux (I was thinkering too much with fedora) but better with it than without. For AUR apps I will use distrobox. I would also like to try toolbx for my projects!
Tech -> Raspberry Pi -> Linux -> New PC -> Mining Crypto -> Monero -> Privacy