The iPad Pro is an amazing piece of hardware! But the last iterations make zero difference for most consumers. The hardware improved rapidly over a couple of years. Both the 2017 model (move from 9.7 to 10.5 screen) and the 2018 model (new design without home bottom, USB-C, Gen 2 Pencil) were huge steps. Magic Keyboard from 2020 was a great addition as well and works with the 2018 model. For my own usage, the 2018 model is pretty much feature complete from a hardware perspective. Software makes the big difference now.

I am still amazed by my 2018 iPad pro four years later!