It’s only the RIR which requests proof you will multi-home and you must have been able to say to which AS you would peer to get the /22, since it’s a question R

It’s only the RIR which requests proof you will multi-home and you must have been able to say to which AS you would peer to get the /22, since it’s a question RIPE asks as standard and the analyst will have considered in approving your application. BGP itself doesn’t care at all. Announce the entire block from one “region” in Vultr, or split it out with a /24 in four different ones. It’ll work just fine.