[destructionator]

> Funny thing about that: if you want them to be scaled correctly based on different factors for each monitor, then you need a compositor...

No, you don't. And using a naive compositor is liable to make things blurry compared to the direct approach (the application requests the physical dpi for its current location and changes its vector drawing).

[md8z]

Yeah you do if you want to have the same window span across monitors. And if you have non-integer DPI scaling then things will probably always be either blurry or inaccurate, that is unavoidable.