I have come to doubt that single core or CPU performance in general, other than maybe specialty applications like CAD and some games, is all that noticeable for most computer users in the last decade. I can take relatively pedestrian users like my parents or my wife and put them in front of a decade old high end Haswell system or a brand new mega-$$$ threadripper/epyc and for almost all intents and purposes they don't notice a different. What they do notice is when things die. I'm sure consumer hardware might be OK for 2-3 years (maybe), but like for my parents, they're happier to keep using the same computer, and honestly the same Dell Precision system I gave them almost 10 years ago works great today, and I have a suspicion that the hardware, outside of maybe the SSD finally wearing out, will probably work right a decade from now too.