This is one of the biggest things I think Lemmy needs. You should be able to create a backup of your profile and export/import it into another instance. That way if something happens or you have a problem with the instance admins you can migrate with no loss or minimal loss to your account.
Gotta say this being one of my first impressions of lemmy... Its not great. Beehaw had a large tech and gaming section that I literally only just subbed too.