@AndrewHurley 
I did mess around and had the game (the second one, clean new project) print out some resolution and scale, both on tablet and pc, in standalone window. On the tablet image awfully zoomed in, I forced the device’s native res, using the r.setRes 1280x700 command. It did work out, but the scale just doesn’t follow. Unlike on PC, where the scale works just fine.
As I said, I did mess around in the MobileContentScaleFactor, but it seems like it just doesn’t care what I do. I also tried the r.ScreenPercentage (as I mentioned before) on both my mother’s tablet and on my tablet, but it doesn’t do anything. As you can see, the DPI curve is untouched, a clean new project this is. Whenever I changed something in the DPI curve, it jut made even the PC preview out of screen 
EDIT: the images are sent as a different comment as it didn’t want to send it here, guess too much files.