OK I tested with my audio interface MOTU M2 and glitches are ubearable! Nothing like that happens neither on my old 2014 macbook pro nor windows PC! I'm returning it :(

I'm curious if that problem applies to all M1 macbooks as I just bought new one and have no issues with sound, should I expect those appear in some circumstances? I still can return it, but for now only because of speakers are too bassy for my taste.

Do I understand it correctly? If I want crisp text on 34 ultrawide monitor with 3440 x 1440 resolution the only way is to return my new Macbook Pro 16 M1 Pro and go with Windows instead? Or ditch my monitor and buy their Studio Display with non detachable cable or that plastic LG Ultrafine 5k equivalent with that ugly big top bezel ? Oh my....