The one thing I REALLY need is an option on my MX3 mouse to easily switch between computers, similar to the easy-switch keys on the MX Keys keyboard. I use a work PC and personal PC side-by-side, and everything is great until I start my VPN session on my work PC. Then Flow stops working, and my mouse becomes a single-machine device. If one of the buttons could be configured to allow switching, it would save me from having to pick up the mouse and push the button on the bottom.
I had to figure this out on my own, and then discovered that there are numerous mentions of it on Reddit, and even hacks where people open up their mouse devices and re-solder the connections. Please add this functionality so I can get maximum benefit out of my $100 mouse!