Oh, I entirely forgot Blue Sail university was a thing.

No, a real degree helps, but no. Most of the time just any software QA experience will do, but testing is either done through companies the game company already contracts with in someway (i.e. Modsquad does moderation and CS for some large companies, and occasionally gets contracted to do public tests or ancillary testing) or entirely in house, which means you need to just apply to the game company (usually their publisher).

Obviously it's a highly sought after position, so you're not statistically going to get it, and since the rise of Early Access and public Betas, there's just not much demand for dedicated testers outside normal software QA jobs.