@richarddegenne @bookwyrm @richard.degenne
No, because each account on a federated network is tied to a particular server. Each server only runs one type of software.
There is no central Mastodon HQ or BookWyrm HQ issuing accounts, it's just your specific server that handles the account.
However, you can follow and interact with accounts on other servers including servers running other types of software. For example @Iancylkowski is a PixelFed account but you can follow it.