Where do I start... Virtually none of the native functions whether the mouse or keyboard don't work as intended ever since updating the OS to Monterrey. It seems like the problems are never-ending between having to replace my mouse after the 'gesture' button stopped working and now the same button is lagging out, not responding, etc. I can't switch screens reliably without it lagging, doing nothing, or skipping through a screen or two. If there's known problems communicating with the new Mac OS, it'd be great to receieve an email or something that would have either troubleshooting options or Logitech's expected plan of attach and ETA on when I could expect my devices to actually do what I paid for. To summarize, the gesture button is more pain than it's worth now (and used to be the best feature) and certain keys (backlight brightness and play/pause) are unresponsive ever since the update. Please let me know if/when I can expect it to work!