I managed to do it all with my phone
What I did is screenshot with the ctrlers button and then i saved em to my phone with the xbox app
At this point i was going to copy to my pc (you can prob access xbox app photos directly thru pc too) and use gimp to crop and collage but i found a good collaging app called incollage. I used the freestyle option and it wasnt perfect but better than the other 3 apps i tried prior