Dear Microsoft: nobody -- absolutely nobody -- wants to use Edge to open pdfs. Stop. Just stop.
@Popehat My 'Other' likes Edge PDF because you can edit/draw in it without needing to pay for some other tool. Great for grading and annotations.
I like it so I don't have to install some Reader that doesn't patch PDF security issues fast enough.
There should be option to turn off Edge auto-opening PDF, when preferred.