hello adamnv,
I have same display issue (when simulating game or mobile device) and only pushing F11 gives to display correct proportions.
but I’m not sure that it is that way it should be?
You mentioned “I’m wondering if this is something to do with a non-square aspect ratio” what you mean by this? can you expand on?
ps.- (contrary to to dmhwtn my Ansel Alt+F2 dose not start, but that is an other issue)