Run it through you you pi hole!
I understand It's not the easiest thing in the world to drop £35 (£55-£60 full set) on a raspberry pi but if you can, that's still an option. I've had one sitting around from numerous fails attempts at making something and decided to try this thinking it's gonna be another failed attempt at a pi project but it actually works. Yeah web pages don't look as nice as when using an ablocker but it works and set up at router level it works on all my devices. My main device is a Chromebook so no Firefox for me unfortunately.