The easiest solution is to go to Settings -> Instance and toggle both "Disable Piped proxy" and "Local stream extractions"
Andromxda
If you host your own private instance, it's less likely to get blocked. But quite a few public instance are having trouble right now.
Grayjay is source-available, but not free & open-source software.
Downloading YouTube videos works, but it's probably not the desired workflow for most people. It takes up storage space on your disk, and you have to wait for the video to download, before you can watch it. I like Tube Archivist, and use it myself for archiving videos, but I wouldn't consider it a great solution for just watching videos. I think LibreTube, FreeTube or a self-hosted Invidious instance are better solutions here.
You can easily deploy Invidious on that Mac as well. Just use Docker, Invidious has pretty good documentation for that: https://docs.invidious.io/installation/#docker-compose-method-production
I used to host Invidious like that on a Mac for almost a year, it worked flawlessly
Some instances like inv.nadeko.net still work pretty well
You can also host your own instance at home on a small server or a VPS. You can optionally put it behind a VPN using Gluetun.
I agree, but most Invidious instances are currently broken, Grayjay isn't really FOSS and youtube-dl/yt-dlp aren't really great for watching videos, they're better for archiving them.
Except the ads on porn sites are easier to block than YouTube's intrusive garbage. A simple DNS filter should be enough for most porn ads, whereas YouTube requires more complex blocking techniques.
You can use the Universal Android Debloater, it's a simple graphical application that does all the heavy lifting for you.
You can use Njalla to register domains anonymously. They offer anonymous crypto currency payments with currencies like Monero. The company was created by one of the founders of The Pirate Bay. They're also on Mastodon: https://njalla.social/@njalla
Wait is that email service the one that is offer by the same guys, who also offer 420blaze.it, cocaine.ninja and cock.li?