I did not and will not complain. I have owned over a hundred pairs of headphones/earbuds in my lifetime and these things are the best, by FAR.
However, don’t wash them.
You realize that this is not a warranty issue, right?
So many things used to come with cheap earbuds or headphones. A pocket radio. A portable CD player. A cheap MP3 player. A laptop. I've even had some small TVs come with headphones out of the box. So there's like 40+ sets I didn't even ask for over the years. Pretty much all immediate trash.
Then there are the ones I bought in a pinch. Go on a trip, realize I didn't bring my headphones, swing by the store and get a cheap pair. Being a cheap pair, they often didn't last long. There's another dozen sets.
Now the ones I actually wanted. Not all have replaceable cups or pads, so they'd often wear out after a few years. Or they were USB, and the circuitry started freaking out after a few years. On top of that I probably have different sets for different use cases. A pair for on the go. A pair for the computer. A pair for the HiFi system. A pair for the office.
I think they're supposed to withstand some degree of moisture, but I don't believe they're designed specifically to be submerged. However, one of mine (gen 2 airpods) got fully submerged for maybe 3 seconds in the bathtub but it managed to start working again when I let it dry out.
I'm not saying I recommend others treat their AirPods as if they're water resistant but, in my experience, all the generations of AirPods can take a bit of a water beating. The only ones I've never done this with are any of the Pro models.
Maybe it was because it was quite a lengthy washing cycle?