First, I have not done much testing with the current "designer" 380 ACP hollow points, but in the past, most hollow points I tested in my 380 ACP guns failed to expand reliably. I might have just shot FMJ ball ammunition.
So, I shoot FMJ ball ammunition in my 380 ACP guns. It functions reliably in all my 380 ACP guns(I have several) and it will penetrate many layers of clothing.
My S&W Walther PPK does not function well with hollow point bullets. It is 100% with FMJ bullets.
My mid 1980's vintage Mustang and early 1980 Beretta Model 84 digest about anything, but hollow point bullets do not expand reliably.
My Kel Tec P3AT is just too small to be accurate.I guess if I need a deep cover very short range firearm, it would be my choice.
My Glock 42 is too ammunition sensitive. It will not function with my reloads while all my other 380 ACP guns digest them just fine. I'm not a big fan of striker fired pistols but the Glocks make a good range toy. I have a 17, 42 and 43.
My Kimber Micros perform as well as my Colt Mustang. Until I got the flat wire recol spring for my Sig2 238, it would not last many rounds between gun failure due to Sig's poor choice of recoil springs. I still do not trust the gun.
I have a 1917 vintage Colt 1908 that has been reliable with FMJ ammunition. As it was my grandfather's gun that he carried in France during the Great War, I do not shoot it much. I have no idea how it does with hollow point bullets. It will remain a Sunday afternoon plinker for the memory of my grandfather.
P.S. I have several other Walther PP series guns except another PPK, but they are all chambered in 32 ACP. While the 32 ACP is kind of anemic for self defense, I'd like to have a current production PPK chambered in 32 ACP.