Ever since I bought my MacBook Air with M1 (16GB RAM) I’ve had intermittent Bluetooth problems. Occasionally interruptions in connection, or skittish performance of mouse. I’ve used the M1 entirely with my Logitech MX Master 3 mouse, and my Logitech Craft keyboard (both of which are only about 4 months old. I saw a YouTube video by someone who likewise is having the same Bluetooth problems
The Bluetooth chip on their Apple Silicon Mac’s is absolute rubbish, and I’m usually not the one who says something like that. For example many people have issues with their Magic Trackpad 2 on a MacBook Pro with M1 Pro/Max (extreme noise input lag and stuttering), including me. . 113 41 14 189 112 166 122 119 179