Some people prefer to trade off stability for a slight performance improvement.
In my PC, I've got a Intel Core i5-3570K (3.4ghz stock) overclocked to 4.5ghz or something silly like that. I used the motherboard manufacturer's "one touch overclocking" feature to determine that speed years ago and haven't touched it since.
The performance improvement is more than slight. Stability is rock solid across thousands of hours of gaming. I'm not running advanced cooling. $60 Corsair closed loop cooler and three Noctua case fans. System runs cool and quiet, fans throttle up and down nicely. Near silent when idle and still rather quiet under load.
That is a pretty decent gain in performance for zero drawbacks and essentially zero effort.
That's around the last generation when it was worth to overclock things, because the headroom on a typical consumer-grade -K cpu was at least 25%.
Personally, I run a 4670K at 4Ghz, and it's been rock stable as my main machine for the last 8.5 years. It's finally beginning to show its age in 22-23, but the longevity and use I got out of a $200 processor is incredible.
But when CPUs auto-turbo to 5+ Ghz, I agree, overclocking sort of loses its luster.
The performance improvement is more than slight. Stability is rock solid across thousands of hours of gaming. I'm not running advanced cooling. $60 Corsair closed loop cooler and three Noctua case fans. System runs cool and quiet, fans throttle up and down nicely. Near silent when idle and still rather quiet under load.
That is a pretty decent gain in performance for zero drawbacks and essentially zero effort.