[DiapDealer]

Everything I've been able to find suggests that dialog defaults for Qt6.10.x have not changed in this regard. Qt still relies primarily on the underlying OS when deciding whether or not to add the min/max buttons (and Windows typically does not add them). But if something HAS changed, I would hate to have to explicitly disable the buttons on every dialog but the couple that we want to have them! And they ARE on every dialog in the RC version

I have seen some code that suggests one might need to combine Qt::CustomizeWindowHint with the other hints for things to work properly. I'm also seeing info that there is a Qt::WindowMinMaxButtonsHint flag.