Follow along with the video below to see how to install our site as a web app on your home screen.
Note: this_feature_currently_requires_accessing_site_using_safari
Right now every single SAB I look at in Knowledge Panel mode is showing a pin at the service area centroid, even though the maps version actually displays properly.
One random example:
I've also had this since December.
Check if on Maps, even though you can see the area, try zooming in and out, then the pin often appears too.