A small part of the Pixel XL screen started to lift off my phone. The screen would not press back in, appeared to be pressure lifting it off in the center of the phone. I decided to replace the battery since I could not get anymore than a few hours out of a full charge (phone ~1.6 years old). I used a blow drier to heat up the phone and the playing card. The screen is extremely delicate so I took my time working it off. I found the original battery appeared to have expanded. The screen partially lifting off probably helped. I recommend to use adhesive strips for putting the phone back together. I replaced the battery and I’m getting a few days now out of a full charge.