What consitutes "a while"? I had to check my Amazon orders for dates on my two anytones... one was late February 2022, the other was mid March 2022. The February one has been in the old car unlocked for ham use the whole time, and seems to be going strong...it's on almost every time I drive the car , and often rag chew on mid power for the 30 mins drive to and from work. The one in the truck replaced a mxt115 and gets less use, but the occasional use it gets is usually on high power (nearest active repeaters are ~60 miles out)...going strong there as well.
That said, it's not out of the realm of possibility that I got lucky, and later examples went downhill, or just some bad quality control let some with issues slip through. QC is one corner that often gets cut to meet a low price point. I'd also wonder about the usage on the ones that died...I'm not the most long winded on air ?