

I think of a Lemmy account on an instance the same as an email address: it doesn’t really matter which one you pick. Pick one that works best for you. Yes, you are beholden to the instance, but it’s the same with Gmail, Outlook, GMX, etc. They can close your account at any time, but they likely won’t.
Of course it does matter a bit what instance you pick: you want one that is well-federated with other communities that will have content/users you will enjoy engaging with. I’m pretty sure you can visit a list on each instance that shows what instances it is federated with.
I would abolish toilets without bidets. You would be legally required to have a bidet in all bathrooms, private and public. Worldwide!