Here are a few screenshots that will better explain why this is a bug. And, how the Action is not doing what I expect it to do. 
The action Show sharing options is attached to a button. The Data field is a plain text field in a database.

When I press my button, the native iPhone Share screen appears (as expected), I select Email and the information I want to share is pasted into the email. But the button link https://pcsch.glideapp.io⦠is also added, it should not be add.

This is the native iPhone share button.
When pressed, the iPhone share screen appears. Itās exactly as it should (per the image) when I use the iPhone photo app to share a photo or if I use my app to share product information.
I hope that clarifies why this is a bug. And the function is not properly working as it should.
If the purpose of the Action Show sharing options is supposed to be used as a means of sharing a link to your app, then the name of the Action is wildly misleading.