Webviews: confusion over existing behavior for viewing published posts from the post list

Expected behavior

When users go to My Site > Blog Posts > View to view a published post on their site, they expect the post to behave the same as it does when they view the post on the front of their site or when they view the post from the same place in Calypso web.

Actual behavior

All posts (published or not) are shown in preview mode (with ?preview=true appended to the post URL). This changes the way the post behaves, e.g. doesn't show sharing buttons (see https://github.com/wordpress-mobile/WordPress-Android/issues/8007) and shows comments as closed even if they aren't.

This makes sense for previewing unpublished posts, but it goes against user expectations for published posts and causes confusion. Is there a better way to manage these expectations, or should we change the behavior for viewing published posts?

Steps to reproduce the behavior

1. Go to My Sites in the app.
2. Open Blog Posts.
3. Select "View" to view a published post.
4. Try to interact with the post like a published post, e.g. share, comment.

Tested on [moto e5 play], Android [8.1.0], WPAndroid [alpha-163]

No source file or test is named. Reproduce the flow in My Sites > Blog Posts > View for a published post, then compare it with the site front and Calypso web; the issue needs a decided behavior for published posts and verification that sharing and comments behave accordingly.