This clears up a few things for me, because the concept of Fediverse are still "abstract" for me.
When i first join, I created multiple accounts on lemmy.world, beehaw, lemmy.ml, because i thinks its mini Reddit, with its own content, and its own account.
Now i know that i only need one account, and i can still see the post from another instances.
There's still some questions that i can't understand
The decentralized nature of the Fediverse, how does one search or now what community on another instances?
Say when in Reddit, we have /r/aww for example, it means that lemmy, beehaw, or another instances can have their own /c/aww ? does it means that we have multiple instances of /c/aww or, we have one single /c/aww but distributed between multiple instances