>Meanwhile I hope my AM4 will chug along a few more years.

I am fine with my 2 year old 128GB DDR4 for now. I will just upgrade the 14700K to 14900KS CPU and wait 2 more years.

Judging by the benchmarks newer CPUs aren't much better for multithreading workloads than 14900KS anyway, so it doesn't make a lot of sense to upgrade to newer CPUs, DDR5 and a new mobo.