You can render Them above Map widgets. You have to put them on the same parent widget and set the Priority the the other widget higher than the Map Widget. At least that is how I got it fixed

After a short test this is what i found out:
To display a Widget in front of the Map Widget it needs to be in a parent Widget next to the Map Widget.
The Map Widget itself needs a priority of at least 1 to let this method work! A value of 0 will not work.
The Widget that should be in front of the Map Widget need a higher priority value then the Map Widget.

Example in game: https://gyazo.com/5b9556f2c6056965befe04b1a1d1a511

Then this can be marked as resolved. Thx for the info there.

@rVn please close.