I am running tests in Edge, everything runs fine locally, but when I run on LambdaTest the alerts aren’t being handled correctly and the test is stuck at the alert itself. Tried using your recommended edge.popups, true setting, but in the metadata for the test it is being interpreted as a string instead of boolean. Not sure if that is intended or not, but the default behavior should be to show popups either way, so I don’t know where the issue lies.
After each button click that is performed on these alerts, you can add “WebUI.acceptAlert()” in your test Script.
I believe this should help to handle the pop-up alerts on the Edge browser. Let me know in case you still face the same issue again.