Mine had this charging issue as well. Sometimes, it would start charging and randomly stop on its own; sometimes, it'd be completely drained, and sometimes, it'd be fine. The cable and charger didn't matter. I suspect there's a weakness in the internal battery design or assembly. I tried connecting the meta link cable on mine the other day, and the headset started beeping with some display warning about possible moisture. It was a brand new official Meta Link cable. I disconnected it and inspected the connectors, but it was too late - I think the battery had a short or arced because my computer dock's USB circuit stopped working altogether (I had to replace the dock), and the quest would no longer hold a charge. I can connect my old USB cable to power the headset, but I have no data transfer capability. I'm two months out of warranty, too, which is frustrating. I'm reaching out to Meta to see if they'll still cover it since I first ran into the charging issue months ago.

I had a similar issue after I replaced the optical drive. The system would immediately go into overheat mode when a game was loading. Streaming services and whatnot were fine, but nothing processor-heavy would work. I applied some arctic silver grease, which may have helped, but I think the orientation of the X bracket that clamps down was upside-down. It seems like the tiny nub in the center should face down to push down on the component below it, but it should actually face upwards. If you’re experiencing the same issue, check the orientation of that piece. It may fix your issue.