I am in NA, but recently around 50% of my games end up with me in EU servers, with 100 ping. I have tried setting the region override console command to both -1 (auto-detect) and 0 (NA), but both frequently place me in EU servers. I'd assume this may be a result of trying to limit queue times by occasionally choosing a worse server so players aren't waiting forever, but I'll often be queuing for only 1-2 minutes before being placed in an EU server, making it feel like the matchmaker isn't trying THAT hard to find me a nearby server. It's super difficult to play with 100 ping so this has been majorly affecting my match quality.