Another interesting history are the dates and models adopted by a US agency. Secret Service switched from the Beretta M9 (made in Maryland at the time) to the P229 in 1998. 20 years later to the Glock 19 and Glock 47 (probably Smyrna, Georgia sourced).
The consumer market in the US no longer trends off government models though. Thin and mini models seem to be more popular, and since most consumers rarely fire their weapon, maintainability and reliability are secondary. The P365 is the most popular in the US at the moment, but it probably has a low duty cycle.
Eh, the reality is that the consumer market never trended off government models all that tightly. What you're seeing is the evolution of duty handguns; metal framed hammer fired wonder nines to polymer framed striker fired handguns. When consumers buy the latter they typically buy Glock 19, 17, 20, etc and there's an argument that they're influenced by government procurement decisions but even still the P320 never sold as well as Glock. As for the P365, it's a different category of handgun, a small-ish concealed carry handgun with way better capacity than the previous generation. Springfield Hellcat and Glock 43x are some of the competitors, not the P229. It's also worth mentioning that when the military or cops need a concealed handgun, they very frequently opt for the P365.
As for the P365 having maintenance/reliability/duty cycle issues, beyond the typical SIG beta testing on consumers shit I really haven't seen people having issues with it.
The consumer market in the US no longer trends off government models though. Thin and mini models seem to be more popular, and since most consumers rarely fire their weapon, maintainability and reliability are secondary. The P365 is the most popular in the US at the moment, but it probably has a low duty cycle.