I've had more revolvers "fail" to function/fire normally, and require repair in order to restore normal function, than I've had modern semiauto pistols fail and require repair.
I can understand if some individual finds it comforting to only use their particular experience with some specific firearms as the basis for their opinions ... but I've been around firearms (owner and LE carrier/user), and have served as a firearms instructor and armorer, long enough to have realized that small individual samplings of things may not mean all that much in the bigger picture.
FWIW, as an armorer I've had to make corrections and repairs to a fair number of good quality firearms which experienced some problem or other at some point (even new). After repair the firearms functioned normally, as designed and intended.
I've become quite confident in using a repaired firearm once it demonstrates normal functioning after a correction or repair.
I realize that some folks limit their opinions and feelings of "confidence" to just what they may have personally experienced, so I've become increasingly inclined to try and "repair" the
confidence of an issued user or owner of a firearm that has to be carried for personal protection.
While a normal factory recommendation to an armorer may be to test-fire to check for normal function after a repair with just 1-2 magazine loads, or a normal "duty load-out" (meaning the number of magazines normally carried on a gun belt), I try to let the user/owner shoot more than that, ammunition availability permitting.
That's usually after I've already shot the repaired gun, or had another armorer or instructor shoot it, and satisfied myself that it's operating in an optimal manner.
Several years ago I started making sure I reassured issued users of repaired duty weapons that I only returned a repaired gun back to service if it was working such that I was confident and prepared to carry it myself. I've even offered to trade weapons with an occasional issued user, if they thought my weapon was somehow "better" because I was carrying it. (As a matter of fact, I've actually exchanged issued weapons with a couple of guys who wanted whatever I was carrying at the time, and handled the issued/inventory paperwork, arranged for qualification, etc.

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