Already done. Windows scales dialog resources according to font size, gtk has text only scaling.
1. Use the make everything bigger/font size settings to change the size of what I currently can't see
2. Restart
3. Open every application I need, and go through every major feature in each of them to determine if I can still see things comfortably, while making sure no elements have exploded in size as this also leads to usability problems
4. If not, go to 1
I have to do this every time I install a new application, or one of them updates and changes their UI or decides to opt into the Windows accessibility settings. The latter one happened a few years ago with Firefox, and cost me a day to sort.
Invariably, it leads me to compromising on what I can and can't see.