alt Hacker NewsThe problem is, as soon as you are not on a Mac but Linux or Windows, you are in for an awful, truly awful lot of pain. HiDPI support is a mess because even in the rare case applications are made with HiDPI in mind they are not tested on HiDPI machines.
Other way around, most Mac software is not tested how it behaves on inferior external monitors.
What kind of windows programs are these? HiDPI is more than a decade old. A desktop application, no matter what OS it is, should always be tested with different scaling factors.