iPad has some good tools for content creation. Procreate for example is probably one of the best drawing tools available at the moment.

But these apps are still largely islands. Powerful pro workflows require multiple applications to be used together in interesting ways. With iPad that's impossible. You have an anemic file system, and strict limitations on what an app can do.

What I want is a proper *Nix layer, like I have on macOS. For instance, if I want to synchronize my files across multiple systems, I need my iPad app to have a built-in solution for that. I want to be able to run a daemon in the background to synchronize my creative work with an S3 bucket using a custom protocol of my choosing. That kind of customizability is just not possible on iPad, and it's a huge limitation.