+1. Firmware patch helps a bit but doesn't entirely fix it. Still waiting for a new firmware to fix it completely as per pawlakbest's comment. I only had the click + hold + drag file/folder issue a few times, the double clicking is more of an issue for me. My mouse also had trouble being detected upon boot I think 2 or 3 times, easy fix though, just unplug and plug in again.
Awaiting the new batch of Glaive mice that completely fixes this double clicking issue - its a truly wonderful mouse, my favourite mouse by far in recent years. The shape and size is just amazing.