layout - web page display on Windows 10 Edge Browser combination -

i have new web pages display when run through browserstack windows 10/edge browser combination. owner demonstrating on desktop monitor, layout not per design random element sizing issues. claims she's never adjusted display size settings , has been using out of box settings since purchased monitor.

• does have feedback running across same issues site pages rendering fine in browserstack or browserling, not rendering accurate layout desktop computers?
• do ms browsers still have compatibility setting issues?