I can't say I agree. Back in 2014 a laptop was purchased with a dual-core haswell CPU. 8 years later I revive the laptop by upgrading the CPU to almost the best possible CPU, which is a 4-core 8 thread CPU or 4-core 4 threads, I am unsure which of these it was, but the speed boost was massive. This is how you keep old tech alive.

And the good thing about mobile CPUs is that they have almost the same TDP across the various dual-quad versions(or whatever is the norm today).