While they definitely do this for handles I’m pretty confident this is also done for DIDs (Decentralized identifiers) and it doesn’t provide a solution if you lose your domain. I think Bluesky (Appview) specifically gets around this by also tying your DID:web to your DID:plc, in case of domain loss. So I think it exists on the protocol but they don’t automatically utilize the decentralization for end-user experience(domain loss) but other appviews can. But I could be wrong.
I’ve been a heavy competitive gamer for 10 years now, kernel anticheat has been an incredible blessing developed these last few years despite every non-player calling it malware. Meanwhile all the consistent players rejoice and newer players don’t have to deal with constantly wondering if someone’s hacking every single lobby.
You can see just how much this has directly impacted high elo League of Legends players via Riots dev blog after their implementation. The most notable: