Windows - Edge
There are a couple of ways to uninstall the PWA app:
1. From the Windows Start menu, open the Settings app.
2. Select Apps and it will open the Apps & features page. Scroll down, find the OMA2 app, select it, and click Uninstall.
Or
1. Open the Edge browser.
2. Go to edge://apps.
3. Scroll down to find OMA2.
4. Select Details.
5. Click Uninstall.