labwc is unique among Wayland compositors in implementing fractional
scale but not preferred integer buffer scale events. We didn't cater to
this particular combination of before. And to top it off it appears to
have no way for the user to set/control the scale so I cant even test
what it will do with fractional scales other than 1. Sigh. As with all
things Wayland, you need to be a masochist to subject yourself to them.
Fixes#7540
2a6870b21f