FWIW, and for thought.
I ran drills about every other weekend for two years with my Gen3s (23s & a 35) in 9X19, 40, and 357 - changing only the barrels. Factory 40 & 357 in the 23s, a BarSto 357 in the 35, and Lone Wolf 9mm conversions. Ammo: mostly 124 & 147 with 115 gr in 9mm; 180 in 40S&W, and 124 in 357Sig. Standard pressure and +P. Long ago, I stopped using coated ammo like the early cheap Russian stuff with the green coating that would absolutely gum up my pistols.
The last 12+ months of this testing, I added a Gen 4 G31; using factory 40 & 357 barrels, a Lone Wolf 9 conversion barrel. Later, I repeated these drills on another Gen4 G31, with similar results.
The only changes I made were the barrels. No problems. Not a single issue during the two years, or since. And swapping the barrels at each range session lets me compare the recoil & accuracy for myself. Reliability has never been a problem. One Saturday morning after those two years, I thought ok, that’s enough. If necessary, I’m comfortable that I can confirm nothing has changed, and run my Glocks as needed.
Just FWIW, and YMMV.