My (very basic) understanding of a pihole is that it calls out to an upstream DNS provider (such as the one you’d be using without a pihole) and caches everything it gets back, meaning that it’s only making new requests when you’re querying a domain it hasn’t queried before. I can’t think of any reason a game would need to constantly be accessing different domains (except maybe for some kind of server browser?)
I mainly play Final Fantasy XIV. I assume they don’t hit up DNS, but they’re not open source, so we can only hope they don’t.
My (very basic) understanding of a pihole is that it calls out to an upstream DNS provider (such as the one you’d be using without a pihole) and caches everything it gets back, meaning that it’s only making new requests when you’re querying a domain it hasn’t queried before. I can’t think of any reason a game would need to constantly be accessing different domains (except maybe for some kind of server browser?)