I've had Zorin 16 installed and running (but for its refusal to hold on to whatever setting keeps the touchpad operational) for quite awhile....on a Lenovo Flex 3 laptop. (This computer came with Windows 10 and was what I used for some of my initial forays into Linux. As a result, in addition to Zorin 16 it still has Windows and also has MX Linux installed...no lectures, please ). The "Flex" here is the laptop's feature that lets you fold the screen back against the bottom and use it as a tablet. I did not buy this for that reason and, in fact, have never used it that way. When in Windows 10, the screen is locked in the horizontal, laptop position. Same with MX Linux...rotating the device 90 degrees either way will not change the orientation of the screen.
Not so with Zorin, it appears. I was going to wait for the upgrade from 16 to 17 but I got restless yesterday and decided to do a clean install. When I booted to the USB and selected Try/Install, the installer appeared "on its side," 90 degrees to the horizontal view. No movement of the computer would make it flip to horizontal. Once I got to where there were some Cancel buttons, I could bail out.
Curiosity suitable aroused, however...I booted up the already-installed Zorin 16 and rotated the computer (which, again, I never do). Son of a gun if the screen didn't flip to tablet mode and, as with the 17 installer, refuse to re-orient itself other than to flip 180 degrees to go "tablet mode" in the other direction. As with the 17 installer, my only recourse was to shut down.
What is it that Zorin 16 & the 17 installer are seeing (and being controlled by) that neither Windows 10 nor MX Linux on the same device pay any attention to?