Tungsten if you have G42 380 is a must from Glockstore. It doesnt like low power(<95 gr) or reloads on factory recoil spring. Traded for Browning 1911 380 and upgraded recoil spring assembly parts to SS.
My wife has a new G42 and has had a few issues and she's experienced so it isn't limp wristing. Maybe breaking in but my other Glocks were great out of the box after a lubing before first shots.
I like Sig Sauer ammo and just bought some 100 grain ,380 and I'll see what happens. If there's still a bit of an issue, I'll go with a SS or tungsten set up.
My Sig P365 has a metal guide rod. I changed to a stainless steel guide rod in my Kahr P380 and Sig290RS. Basically a feel good change.