There are instances where the Mac-specific gestures/keys stop working on my MX Master 3 mouse and MX keys keyboard (until a reboot).

For example, pressing the Mission Control (aka F3) or Launchpad (aka F4) keys results in MacOS registering it as an F3 or F4 key-press (as opposed to Mission Control or Launchpad).

Similarly, the gesture button on my MX Master 3 (which I've set for window navigation) fails to work. Instead, it opens and cycles through the Cmd+Tab app selector.

During this period, it appears that Logi Options+ also thinks the MX Master 3 and MX Keys are disconnected despite being connected via Bluetooth (see screenshot).

I should also note that I've experienced this issue even on the (old) Logi Options software. And I'll add that I've experienced this issue ever since I got my MX devices over a year ago.

One noteworthy observation is that restarting seems to be the only thing that fixes the issue - that too temporarily. An additional observation is that stopping and restarting the Logi Options processes via Activity Monitor doesn't seem to help.

My system specs are as follows:
- MacBook Pro 2018 (15-inch, 2018)
- macOS Big Sur (version 11.5.2)

I'm happy to share more information, so feel free to reach out to me.