I was going to ask about Win32. I haven't had to do it in a while, but if I had to write a desktop app in windows, that would be what I would reach for. It's still supported... is their any indication that it won't be for many years to come?

Also, it looks better, in my humble opinion. It's probably lacking features that I'm uninterested in.

Still works fine. High DPI stuff is a dick but that’s about it.

Eh, high dpi has always been a mess given the hacks adobe and windows assumed in the past.

I implemented a WPF control to look like a winform control and ran into a issue of the vintage control looking perfect at an odd (9px by 9px) native pixel size that gets distorted by WPF when rendered at different scaling.

Visual Studio's + sign expanders have had this bug for years that was finally fixed by changing to a chevron shape in 2022. Clearly this problem bugged someone on the dev team hence the fix. =)