I’m on 24H2 win 11 and I did have a match where my FPS randomly dropped for the whole match (never experienced it before). Normally 200 solid but I was stuck between 40-60 and my CPU was getting very warm. Once the match was over it was perfectly fine.
I also had someone in my comp match the other day saying their FPS was atrocious in that match so something is causing massive frame drops when in lobbies occasionally and I think it’s related to the CPU.