Chosen Solution
My Macbook Pro (13 in., 2 Thunderbolt, 2019) has a lower metal casing that’s starting to lower, especially in certain corners. The back (display side) left corner is affected the worst, but no more than a millimeter or so:
It’s still enough that I feel it though so I just want to confirm it isn’t something to be worried about.
What I worry about is the battery maybe failing causing it to press on the cover. As your system is still likely covered under warranty I would get it into an Apple Store or authorized service center to get it looked at. You may want to get the AppleCare+ contract to be safe.
