well, the tweet mentions explicitly XPS-15 9500. As 9510 is mainly a refresh of 9500 (Intel Gen10->Gen11 platform), with the same keyboard, I would expect the same issue to be there as well... I upgraded from a XPS-13 9350 to a new Gen11 9310, just to find that Fn+Left/Right has no effect and Home/End buttons are now on Fn+F11/F12 (which is pretty much useless at least in my coding workflow...). Not sure yet what I'll do. I like the form-factor, but I might have to send it back and buy a different brand instead...