1) Options+ do not support some gestures that previous options does.
2) "Wheel shift mode" do not work in combination with "gesture button"
3) I am using two MX master 3 for work. (one I have home and one in office)
But we cannot instal logitech options on work PC. Could be possible to set shortcuts on another PC- mice would remeber that and use it on another pc where I cannot use logitech options??
It would be very helpful if mice can remember this settings and I can use it on any other PC without instaling and setting via Logi options
4) I have also MX keys - but I use more than 3 devices, would it be possible fot this keyboard to switch between more devices? I have 2xPC 2x mobiles and tablet, sometimes other more PC and switch dongles or bluetooth everytime is extremely uncomfortable
5) do you think that some keys could have 2 positions? - Like photo button on SLR camera - for example - light pres "Function button", hard press "special function" (for example brightness) Or the "function buttons shlould be differentiated by backlight collour: if i have function keys locked it should be backlight blue (for example) If I have locked special functions instead "functions button" (like brightness, media buttons etc.) Buttons should be backlited for example white. (or vice versa)
user could customise backlight for him to know for first sight how if he have locked function keys or not...

I would very apreciate your feedback, I love your products and I have many of them. I am looking forward to new generation one and also I would like to participate on new ideas! :)