That’s really cool! And yeah the bootloader locking checks out with into from other guides.
That unbricking talk flies over my head on the other hand, it sounds like one of those fake tech speaks to my uncultured self lol

How did you install Graphene in the first place?

Still personally I’ve had very very few ones breaking, but I guess it depends on our browsing habits what we use the most. A report broken site function exists on desktop, but I think it’s still missing from mobile

Those 2 might very well cause issues sometimes, you should try and fiddle around with their settings on the websites that complain, or outright whitelist them if nothing works and you want to use them, other times it really is the browser or even more often an artificial check of the user agent string (dick move on the dev’s side), so if you spoof a Chromium browser it’ll start working right away

Most? Are you sure you didn’t install some extensions that break your browsing?