Some of these could use “Nightdive” treatment like TimeSplitters trilogy.
Simple a PC version of the game with support for latest hardware and operating systems and support for LAN or self hostable multiplayer would give these games new life among people not interested in modern multiplayer games.
I see Lemmy and other fediverse platforms as pioneers for desentralized web which is still in its early stages. There are still problems to be solved and likely bunch of things that should be streamlined before bringing in the masses but there’s a lot of potential in desentralization even beyond social media.