I have a couple Keychron K10C3 with brown's. Best keyboard I've ever owned. Thanks for the review on the K7. I think I will buy it for my laptop. Never had problems with F keys on a windows machine. They are built well and I really like the all aluminum chassis.
That keyboard is my main drive. I purchased it with banana switches, which are brown-like, which is what I prefer in normal profile keyboards. But I changed most of them for blue switches, which are way too clicky for me on normal profile, but were a game changer on this one : it solved both the "too mushy" and "too quiet" problems, that I felt as well, and without the deafening power of their full sized counterparts.