It would be useful to add a return button on the posts when you open them from Home or Explore pages.

At the moment, if you open a post in the same tab, your progress of Home or Explore will be lost, and you'll have to scroll all the posts back.

Another possible solution is to add a preview of a post instead of opening it in the tab by permalink. With preview you'll still stay on Home or Explore and can close the post to return to the underlying page.