QAnon is definitely a cult of stupid boomers (to put it simply), but that doesn't mean that it should be banned. The people believing in that bullshit are not gone, if anything, they are now reinforced in their beliefs and regroup on alternative platforms.

Try https://shitposter.club/ You will see other instances on the timeline, too. App: https://f-droid.org/en/packages/su.xash.husky/

Federated social media platforms. There's no central server like it is for Twitter, Facebook or even Ruqqus. Anyone can spin up their own instance and connect with others. Google wants to tackle it on the client-level by forcing the developers to ban certain instances like Gab.

That's a bad comparison because the Fediverse is based on communication protocols, just like HTTP is for the browser. Anyone can create their own social media platform, similar to how everyone can create their own website. Google Chrome doesn't ban websites with hate speech or even child pornography either, only known malware sites AFAIK, but you can even turn that off if you really want to. What Google is doing here is in no way justifiable and I hope they reverse their decision.

Why bother hosting a different service altogether? It's not as easy as it sounds because you have to deal with IRC bot spam and malicious users, too. Rizon would probably be best suited for a #ruqqus channel.