Lemmy appears to be very similiar to Mastodon, with decentralised servers to prevent musky spezulence.
Just a bit confused as i’ve tried Mastodon using the Tusky app and it felt like twitter but decentralised, whilst Lemmy feels like reddit but decentralised but language such as fediverse is shared.
The Fediverse are a number of services that use shared protocols to talk to each other. Each of these services can fulfill different roles and there are plenty of alternatives to existing sites.
So the threadiverse (Lemmy/kbin) are link aggregating forums like Reddit. Micro-blogging platforms (Mastodon/Calckey) tend to occupy a similar space to Twitter/Threads.