I have two P-07's that I purchased new in 2017 and 2018 and neither of them had any out-of-the-box reliability issues, other than the well-known firing pin retaining pin issue that is easily solved with an aftermarket part from CGW for 5$.
The issue with the wear on the front rails in the frame, from contact with the slide, has always turned out to be a non-issue that stops progressing over time. It's just part of the break-in to allow it and then knock it off with a small file. Never heard of it causing any kind of actual failure. Also, those rails are part of a front insert that is replaceable. I have spare front and rear inserts in case I ever have a real problem with them.
Some people have had the trigger return springs break, others haven't. Personally I have used the CGW part which sells for 7$ and never had them break. If you're worried about it, you can replace them every year or 5K rounds or whatever to ease your worries. I periodically detail strip my pistols for cleaning and inspection, and usually replace that spring with a new one while I'm in there, if that pistol has been seeing a lot of dry or live fire. So I also have a little bag with a few used ones that never broke on me.
Lately it seems as though CZ's quality control may be allowing some broken P-07 / P-09 models to ship, based on the number of significant problems reported on this sub-forum, including a few with the decocker and this latest report of the trigger bar in the P-09. I guess what that means to me is that if I purchase a new gun right now, I'd really run it through the ringer for at least 1-2K rounds before doing any custom mods that might void the warranty, so that I could send it in as necessary to correct any out-of-the-box issues.
I also noticed on the CZ-USA web store that a lot of factory parts for these guns are currently out of stock. There are always things out of stock, but right now it is more than usual. I don't know what supply chain issues they are having or how much they are re-prioritizing parts and labor for sending weapons to Ukraine or whatever, but it's something to be aware of.