"Jam" is a term lacking a specific definition. I look at it as "failure to feed" exclusively, with stovepiping the leading cause. Most are caused by a magazine stripping dynamic which allows the round to pop up and miss the chamber striking some other part of the barrel shroud, or accompanied by another round with it. It's less the gun than the magazine. Right now the M17 is accused of it - but only with round nose ammo. The specified hollow points feed just fine! One point to that is the hollow points are heavier than the light round nose used in the test.
That leads to magazine spring weight under loaded conditions as a factor. If rounds are ejecting before the slide can control the feed then the slide speed vs mag spring weight is out of kilter with one ammo vs another. Maybe we are asking too much for guns to shoot "anything we shove in them" as a condition of use, when in reality we usually settle on one. Defensive or competition carry doesn't require chasing around from 95 to 165 grain bullets. Some combinations of gun and bullet weight are known bad actors yet there are a large number of new shooters who insist that whatever they like be accommodated.
I think we ask too much and are creating the situation with the plethora of bullet weight. Coupled with shorter barrels and faster slide speeds, it's frequently acknowledged the more you chop them, the more common it is to get problems. Fast slide speed means higher mag spring pressures to present the bullet in time to be fed into the chamber, and the harder we push this combination the more problems are popping up. Literally.
As people report which guns they had problems with keep in mind how many are boutique variants instead of plain jane designs with a long history of use. In that light this thread has a lot of value.