I personally would not, partially for the aforementioned concerns about .zip and also because Lemmy IIRC has no migration path from one instance domain to another. This is partially due to ActivityPub and partially due to it not being addressed in Lemmy core.
This is part of the reason why after FMHY.ml got disrupted, those communities could not come back online on that server.
For the time being, whenever you choose a fediverse domain, you are stuck with it, especially if you run Lemmy.
I'm not that confident in sites that choose .zip at this point in time.