Which is something like 2/3rds successful in my experience (I use this daily), and requires tons of fiddling to get things looking even mostly reasonable (lots of misalignments and funky padding otherwise). And lots of applications don't respect it and you're stuck with too-small controls when it fails. Which makes it a noticeably-worse success rate than fractional scaling, afaict.

I still use it because the end result on some of my most-used applications is nicer, and it seems to be slightly-noticeably better performing (on a high framerate screen). So it's good enough for my tastes. But it really isn't anything I'd call "successful".