Just installed Monterey on macbook pro 15" mid 2015 (with 2 gpu's), which had Catalina and there is no lag with iGPU when browsing or typing in any program. Monterey seems to be working faster than Catalina on that laptop. Felt little bit frustrated, because I updated from that machine to this 16" 2019 and got inferior laptop, at least in case of macos, web browsing and typing. Maybe I should just buy 2015 machine again and get rid of this ****, or just get rid of macbook world all together, just because it seems that all models have too many problems. It feels just stupid to buy them, live with problems and then buy them again. No thank you. I'm done.