https://bugs.debian.org/581517 implies that there has been some problem
with pinentry-qt4 showing up behind windows.
Fedora apparently has this simple patch to work around the problem (attached):
Which refers to this stackoverflow page:
which seems to imply that maybe it's not needed any more?
I haven't tried to reproduce this with a modern qt4-based system (is
that a thing? aiui, qt4 is going away...), but i wanted to know if
anyone from pinentry upstream has any thoughts about it. It'd be nice to be
able to just say "fixed, not an issue" if someone can confirm that is the case.