Yeah, they're decent, but performance limitations are noticeable after 5-ish years, like stuttering in newer games or whatever. I like sim games like Cities Skylines and Europa Universalis, so a better CPU is often a huge improvement. I don't play many GPU intense games, so I rocked a GTX 960 until I got tired of Linux breaking and upgraded to an RX 6650XT for better Linux compat and better frames on my 1440p monitor.
So I down-cycle components into other machines. In the past, that was to my wife, but she has been playing newer games recently, so that's out. So I upgraded my NAS from my ~15yo CPU to my ~7yo CPU (and my GRX 750ti since it doesn't have on-board graphics anymore) to save on power and increase performance. Soon, I'll down-cycle for my kids. I have two PCs that are almost ready to go (just need disks, and one GPU), and 2 kids that are almost ready to have their own.
So we do a decent job of reusing hardware. A given machine will probably have a CPU for 5 years, but we'll use the CPU in some capacity for ~10.