That sounds as if you don’t like the idea, but yes, optional would be the best.
I have also never liked a program like Timeshift, but as experiment I have started to use it on my laptop and I use it full time. I can always go back to a previous state, just did so this morning after I was trying out some new icon themes. I found out I lost several icons, the ones for typical KDE programs. Didn’t matter which one I chose, they were not there, so I restored yesterdays state of the system and now all is working well. Took maybe 2 minutes to do so, including the necessary reboot.