Although PWA is very useful in some circumstances. Some browsers don't support it (Though they use chromium 78). The following is the procedure to install / uninstall PWA.
Open these three experimental features
Open a website that supports PWA. For example appinn.
Press the small "plus" button in omnibox and install the PWA
But after installing PWA, we need to know how to uninstall them.
If you use chrome, you can follow the instruction in Stackoverflow
I will take 360 chrome as an example.
After installing PWA, look the property of the shortcut of PWA. Remember app-id following the command.
Then, we need to enter this directory:
Then, find "Web Applications" folder. Delete the folder that has the name of app-id.
Then go back to User Data\Default, find Extensions, Delete the folder that has the name of app-id [Need to use software like IObit Unlocker to delete this folder].
Finally, this PWA is deleted.