Actually, it’s far more limited than those options. The main advantage however, is the Manifest V3 support of it, meaning that such extension can be used on limited web browser that enforce it. Which isn’t a lot.

Here’s an actual FOSS cross-platform alternative with Windows, Mac and Linux (Need to be manually compiled and still experimental) https://screen-play.app https://gitlab.com/kelteseth/ScreenPlay

If you want something a little easier to install, and especially, allow fixing a couple of those issues safely, and automatically, you can try antidot .

xdg-ninja do already use the antidot rules natively, it’s mostly for those who don’t want to manually do the safest/easiest of fixes. It should be safe to use alongside xdg-ninja.

grapheneX https://github.com/grapheneX/grapheneX Unrelated to grapheneOS

Nobody blamed them here, as far i read.