I don't know if anyone else is in a position to do this, but FYI: Since I now have two Home licenses, I installed the old Home 2019 R2 Beta on a second PC, since it's the only version that ever had a workable way to do HDR 20pt Autocal for my 75" Q90R. That Beta didn't yet have a C6 meter mode for 2019 QLEDs, but since I now have a profile for my Q90R, that doesn't matter. Also, to get that Beta to have the correct adjustment points, I have to connect as if to a Q900R rather than a Q90R, but it works. So I did an HDR Autocal (which has no 20pt) using the current 2020 release, and then one using that 2019 release, without moving the meter. Here's a comparison, with Pre having no 20pt and Post having 20pt. The Contrast setting is also different between the two, since 20pt gives more wiggle room.