You need to consider your barrel length. If you have a short barrel, such as the 3.1" barrel in my P365, you need to worry about the reduced muzzle velocity being insufficient for a hollow point bullet to expand properly under all conditions. If you are shooting an attacker at the nude beach, most bullets will expand properly even with a short barrel. But the situation changes completely when you are shooting through multiple layers of clothing, and at longer distances. For these reasons, with my P365, I would prefer to use 115 gr or lighter bullets with a +P load to obtain a muzzle velocity closer to that of a more normal barrel length.
I've seen ballistics testing that showed muzzle velocities much under 1,200 FPS can sometimes result in marginal bullet expansion when going through multiple layers of clothing. These tests were also performed at close range. Expansion at a longer distance would be even worse.
In Florida where it's mostly warm and people are not bundled up it, bullet velocity may not be so critical. But up North where people bundle in multiple layers, the bullet velocity is far more critical, especially with a short barrel.
I've used 115 gr JHP Sig Sauer, Speer LE, and Winchester, and 115 gr FMJ Browning, Magtech, Remington, and Winchester ammo and I have not yet had a malfunction. However, I've only put a total of 276 rounds through my P365, so it may be too soon to tell. The cartridges had rated muzzle velocities through a 4" barrel ranging from 1,135 to 1,225 FPS. None were rated as +P, but I think a couple were close to a +P load. FYI, I didn't set out to test different brands of ammo. I was just buying the ammo that was available at the time.