Ok, reporting in!

The backup restore button works perfectly! I got the option to restore the moment I cleared the code, after clearing + refreshing the page, and after clearing + closing the tab + reopening the page. The icon feels pretty intuitive to me, too. The "undo" arrow over the trash can makes it real easy to understand, I think.

The live update delay doesn't bother me either way, tbh. Doesn't seem to be too slow, but I don't usually pay attention to that much in the first place. My laptop is fine enough to handle any load the current version brings, but I do like the idea of the delay making things a little easier on anybody who might be using an older computer/phone/etc or bad connection. :>