. . But that problem - window not maximised at all upon open, when HiDPI scaling is disabled - *only* happens when 'draw tabs in titlebar' is enabled. So here we get closer to the root of the problem, I imagine.
. . But that problem - window not maximised at all upon open, when HiDPI scaling is disabled - *only* happens when 'draw tabs in titlebar' is enabled. So here we get closer to the root of the problem, I imagine.