It kills me inside that it's entirely possible to configure Motif apps to look good on ultra-high-resolution screens, but the default configuration just says "fuck it, bitmap fonts for everyone, define it all in screen pixels, and fuck you if you don't like it!"
Sorry, I believe a window should be the same physical size on every display, whether it's 1080p or 8K, and higher resolution should just make it smoother. Fuck me, right?