Lots more folks still having this issue with the new 2022 M1s. It's so bad that the audio for most things is completely useless unless using headphones or bluetooth speakers. https://discussions.apple.com/thread/253681560.
Drop $4K, get a POS laptop that Apple doesn't seem to care about fixing because not enough people are having the problem? I can't even play audio consistently without pops and cracks hurting my ears at random. It'd be comical if it weren't just plain sad. I exchanged the laptop and the next one had the same exact problem. Unfortunately, needed a new macbook for dev builds, so I had to keep it. If I was a consumer, I'd return the thing and never buy Apple products again given the level of non-support (which is simply astonishing).