KDE user so for my personal files I backup with both Kups and Bups (install both) and you get the choice of cloning type or only changed files with going back in time choices. Integrates into KDE taskbar/system settings.
For redundancy, I back up my main sync folder on the desktop to my laptop using Syncthing over my WiFi/network.
You are not alone. Many love its ‘restrained’ workflow, and DEs are subjective. It sounds like you are ready to move to KDE. KDE has a ‘Overview’ that mimics Gnome’s, so best of both worlds and the taskbar in KDE is actually functional. Don’t waste anymore time, make the switch to day. Operators are standing by. 🤣