Comment # 21 on bug 1202837 from Atri Bhattacharya

I am not a GNOME maintainer, to begin with, so spare those good people your
wrath.

More to the point, Qt apps such as YaST that do not set PassThrough in their
app explicitly are the ones that suffer, because the default Qt 5.15 scale
rounding policy is to 'Round'. Nothing to do with GNOME.

And yes, if you set the environment variable
'QT_SCALE_FACTOR_ROUNDING_POLICY="PassThrough"', to get around this (whether in
the installation DE or in KDE) that is just plain wrong. That variable should
be left to the user to set in case something does not look right to them.
Indeed, even if the app sets its own PassThrough policy, the
QT_SCALE_FACTOR_ROUNDING_POLICY env variable, if set by the user, takes
precedence.

But you believe this is not YaST's to fix, fine; that opinion is precisely why
I thought of getting YaST devs into the loop. No intent to dump anything on
your lap maliciously, sorry if that is what you felt.