Well, it's official... my original PS4 controller has kicked the bucket. Buttons are loose and squeaky, and the left joystick drifts. I had to order a new one online.
I could try to fix it, but... it's version #1 and there aren't many parts out there for version #1. Most parts are for version #2.
Sucks because I was 60 hours into Dragon Quest 11 when it got all screwed up. But I do have a second controller -- although it's starting to run into the same I issues.