How about wifi? I am experiencing random wifi disconnects ever since the mid-2014 MBP all throughout the current-gen 12” MB. It’s so infuriating that I had to disable wifi and Bluetooth altogether and switch to a dongle with an Ethernet connector. I changed routers and even my home (!!) to see if the issue persists (it does). And I’m not alone, forums have similar cases dating years prior to me.