Big Sur 11.4 fixed the issue on my MacBook Pro

Same issue on my 13 inch 2019 4TB3 MacBook Pro I5 8579U 16GB RAM intel 655 it stutters even if I’m not doing nothing and switch desktop or resize a window, the weird thing is that sometimes it doesn’t happens and it is smooth. I hope in 11.3 otherwise I think I’ll just downgrade to Catalina (although I really like the new UI)