I'm no expert, just own, shoot, clean and lube several CZ pistols.
The FPRP wear damage is variable on variable pistols. I've pulled factory FPRP out of brand new pistols to replace them with the CGW pins and found damage. So a new pistol, fired only at the factory (how ever many times they fire one for testing/adjustments) shows damage to that pin. I don't know if it's just live ammo fired or if they also dry fire them.
On the other hand, I've pulled the factory FPRPs out of pistol I've shot for years and dry fired now and then (with no O-ring or snap cap) and seen less damage to the pin than on some new pistols.
What is called anecdotal evidence is related here on the forum by multiple members about the slide locks. Some guys get 20,000 rounds through a pistol with no breakage. Others break one in less than 5,000 rounds.
Different guns are different.
It's still a good idea to have some spare parts. You won't know if your gun will suffer from a broken slide lock, broken trigger return spring, broken firing pin retaining pin, etc. until it happens.
I've got a couple of those divider style tackle boxes with CZ pistol parts in them. Some day I might need to use a part, or two. At this point I'm figuring I'll probably have to let my boys sit down and divide them up after I die.