They hold a charge for about 30 seconds to two minutes at most. So while they do connect and play back audio and everything else, they are essentially useless because of the completely depleted batteries in both earpieces.
I bought them in January 2018 and they started "dying" very rapidly and suddenly sometime in late 2019, early 2020. Which is expected, but it was still very frustrating.
The charging case, however, does seem to hold 2-3 charges and I totally would use it with a pair of 2nd Gen AirPods. Except no retailer I've come across offers (genuine) replacement AirPods that are cheaper than just buying a completely new set of 2nd Gen AirPods.
I have APP now and I'm quite happy with them except for some issues with the "auto"-switching on M1 mini and M1 iMac(I actually have to go ethernet only and turn off Wifi for Bluetooth to be usable).