This is one of my biggest concerns with Apple Silicon and the data we have suggests this may be the case. These SoCs are built on the same architecture as the mobile SoCs. iOS devices are notorious for becoming slower with each year's major software update. For example, my iPad mini 4 is able to...
Apple should make Insanely Upgradeable Mac Pro computers like these (Mac mini, Mac mini Tower, Mac Pro plus standalone displays for them):
HP unveils its insanely upgradeable Z-class workstations
Does 3TB of RAM, dual Xeon CPUs and dual NVIDIA Quadro P6000 GPUs work for you...