If you remove the grey bar with the word “TAPTIC” next, removal of the battery adhesive is much easier. It can be pulled straighter back with less chance of tearing. Here’s an image with the securing screws identified.
If you securely anchor the screen to a can of soup, it is not necessary complete step 16 Front Panel Assembly. I was able to remove the two bottom (1.2 mm) screws and the 2.8 mm screw, but could not get the upper (1.2 mm) screw. I was able to remove the old battery with the Front Panel Assembly left in place.