See my response above...about my use cases for doing some heavy duty developing of my photos with things like Affinity Photo....or even doing some video work with Davinci Resolve (sound editing, video editing, VFX, color grading)....
And I don't really need anything external by the Apple Pencil
To run these apps...you do need some serious horsepower...but I can move data in/out from cloud...or just load it up on the iPad itself, since you can get with like 2 TB of storage....
I might bring my iPods Pro 2 with me for better sound, but that's it.
And this way, I can do some work or 'fun' work while out at the pool or beach or beach bar taking a break, etc.
I'm not sure what all squid array of things I need to attach to still do some serious work or play on a loaded up iPad Pro....?