I use UltraUXTheme Patcher Doc, they create a backup of the original files should you need to restore them, but in my recovery part i was speaking about the Theme files, if you apply them and it all goes wrong, i was indicating how to recover and remove the Theme files manually, getting you back to were you started before applying the Theme.
I always advise caution whenever i talk about Themes and there use. Just like we have a Forum here talking about how to use Stardock Programs, there are many similar websites connected to Themes and there use on the Net. I was an absolute Newbie, when i realised WB would not work with Win 11, but needing customisation, i put the time in, created safer working ways, and now due to my Beta Testing of Themes, i have come a long way.
Hopefully if peeps who wish to follow a similar path, put in the man hours prior to testing something new, and take some basic steps, there warranty will stay safe, myself wouldn't trust MS with A Warranty for my Potato Peeler, but that is just me (too Many Moving Parts ) others may feel different.
But if i was not clear enough, Do Not Do This On Your Shiny New In Warranty Machine.