Thanks for the tips. Will give the AV1 setting a shot. By Iridium do you mean "Iridium for Youtube"? It seems it's not maintained anymore? TBH this functionality was default working on Youtube for me until recently and suddenly stopped. I'm on a 4g based wifi at home (long story) so maybe this is the issue but it 1) only just started happening in the past 2 weeks and 2) really shouldn't be an issue as the speeds are pretty good. Everytime I switch to 1080 or higher even there is no buffering issue at all.