Mutter doesn't expose fractional scaling on displays with small screen resolution (720x1280, 800x1280)
Hello!
I noticed that Gnome Control Center don't let user configure fractional scaling on displays with small screen resolution, such as 720x1280 (GPD Win 2, GOLE F1, etc.) and 800x1280 (Dell Venue 8 Pro 5855, HP Stream 7 Tablet, Lenovo Miix2 8, etc.) Mutter doesn't apply fraction scaling to such displays, even if it was configured directly via editing monitors.xml, which is why I believe this is more Mutter issue than Gnome Control Center or Gnome Settings Daemon, but if I did mistake please move bugreport to appropriate Gnome's component.
I have to note that default 100% scaling is too small for these devices due to display size. Text is hard to read, and at least 125% scaling (or even 150% in some cases) is necessary to make it usable.