I've been using an i5-13600KF at stock clocks on an ASUS ROG Strix Z690-A Gaming WiFi D4 motherboard with 32 GB Corsair Vengeance LPX DDR4 3600 memory since December 2022 with no issues at all. It was a custom built PC with a Corsair H100i 240mm All-in-One liquid cooler from PCS*********, who had the foresight to enable the Enforce All Limits setting in the BIOS for the ASUS OC profile, so the CPU has never been running that hot or with excessive voltages. Perforrmance-wise it was hitting the rated 5.1 GHz on the P-cores and 3.9 GHz on the E-cores in games so no issues there either.
I actually did not even update the motherboard BIOS from the one PCS********* installed (2204 I believe) until May 2024 when I heard about the Intel CPU issue and decided to try the new Intel profile. Since then I've updated it three times to the latest 3701 BIOS which includes a microcode update for eTVB (?) or something. Again, everything runs fine and I have even switched to the Intel Default profile albeit with SVID set to Auto, from Intel's Fail Safe (since it resulted in higher temperatures and voltages otherwise), and with the PL1 and PL2 set to 181 and another Amp setting, I forget what it is called, set to 200, as per the Intel 'performance' specifications.
Not overly concerned about this issue as I don't overclock and chances are that I will have moved onto a new CPU and motherboard long before the CPU ever fails. Of course, there is still a chance my CPU could suddenly show signs of degradation but I am hopeful. If it does become unstable then I'll either contact Intel for a replacement or buy a new CPU and motherboard, depending how long I've actually had it.
That said, my next CPU and motherboard will almost certainly be AMD ones as I am disappointed at Intel's response to this issue which is to basically keep as quiet as possible and only provide the absolute minimum of support and commentary such that no-one really knows which CPUs are affected or, indeed, if all 13th and 14th CPUs are affected.