My i7 desktop from 2011 is still strong, but I was in the hospital ICU last year and promised myself I would build a zen 3 desktop. It's a bit more stable, and the pci-e v4 NVME storage is awesome, but otherwise it's pretty much the same experience. Games play about the same because I moved the same GPU over. The CPU bound softwares I tend to use are also single threaded, so the fact that I have 4x more cores doesn't change much other than let me run lots of processes. In practice, my ability to multitask is limited by UI bugs rather than raw compute power.