Only insofar as some instances block communication from some other instances. Not mine though, that’s actually one of the reasons I picked it. That and it being by an org that’s older than the web and runs a public unix server and a bunch of retrocomputing type services as well as fediverse stuff. They started out as a dialup anime BBS.
The idea is that Spain and Portugal are part of the “West”, but not Spanish or Portuguese colonial offshoots, which are mostly South American and haven’t fared as well as the colonial offshoots from other nations of western Europe.