With the vlemmy situation ongoing, i feel like it would be useful to put this here (i did not make either of these tools)
[Lemmy Account Settings Instance Migrator](https://github.com/CMahaff/lasim) (LASIM) copies all your subscribed communities and blocks and lets you upload them to another account, in just a few clicks
[lemmy-migrate](https://github.com/wescode/lemmy_migrate) does the same thing but without a GUI and support for uploading your backup to multiple accounts at once
unfortunately matrix sucks revolt isn’t federated and irc is outdated so