When I try Stage.toFront, my window only brings on first z priority but when any other window is called, my stage is sended to back. I'm looking for method that keeps my stage window on top of any other, including OS notifications/alerts. I think that JavaFX (please correct me if I'm wrong) doesn't haves classes for this purposes.Yes, you are correct. That is quite an old request, created some 27700 issues ago:
If I use awt as a container for my JavaFX window, performace will be the same?You'd have to try it with your JavaFX window to see if the performance remains acceptable for your users.