Hello, I have been experiencing a few issues, hope this helps
Device: M1 mac mini big sur 11.6
Mouse: MX Master 3
Keyboard: MX Keys plus

1. Keyboard backlight often fails to turn on, I can't turn it on/adjust it using media keys ( other media keys work during this)

2. Media key on f5 ( show desktop ) fails half of the time (issue was also present on previous non-beta version)

3. When connecting mouse with unifying dongle, it sometimes gets very janky/unresponsive

4. Mouse flow is not working as expected, it does switch once or twice then stop functioning (same version on other device, macbook air 2017 intel big sur)

thank you