i have a MacBook Pro with Intel as well
Big Sur feels sluggish, it's not that it's slow, but it feels slow. I don't remember what OS my MacBook came with, but every update made it slower, especially Mail.app, which takes good 10 seconds to launch. Downloading Monterey now, hopefully will see improvements!
edit: but my biggest macOS complaint yet has to be the space used by "Other", which at the moment is about 50GB and 70GB at times