being a long time fan of Colt Government model 380acp for CCW, so I do not have personal reservations about the reliability of a "smallish" pistol of known quality, that has been well maintained and shot a lot (no different than "smallish" revolvers)
I bought a new LCP "7-shot derringer" a while back
bought ~300 rounds total of 380acp, several different brands, all in 50 round boxes of FMJ
(yeah.. that was quite a while back)
shot it all up over 4 or 5 range sessions, cleaned gun in between, of course
not one failure to feed, fire, eject, zero issues
nor any since, though I don't go thru rounds like that anymore, 380acp price/availability being what it is lately
it is what it is ("7-shot derringer")
it ain't what it ain't (not a great substitute for larger & more shootable)
but I don't live a real adventurous life, and do often carry only that LCP, it being so very convenient of course, and am not worried about it's reliability
luck of the draw, maybe... or maybe not
I would never carry any handgun without having shot at least that many test rounds through it first