This is an incredible piece of hardware, I just don't know what to do with it
how is music production on it these days?
GarageBand is fun, and capable of making surprisingly complex music. Logic Pro is also available on iPad now, but it's only available with a $15/month subscription, so I haven't tried it.
For artists, there are a lot of good tools: Procreate, Art Set 4, Adobe Fresco, Artrage, etc.
It runs PlugData, the plugin version of Pure Data! You can easily bring down the best iPad processor with the circuit~ object. ;)
Still subpar, only real DAW available is Logic Pro, the audio stack behaves differently than macOS, no support for VSTs but has support for the AU format.
A friend who I make music together had an iPad that we tried to add to the setup, in the end after some months we chucked it aside and just got a MacBook for our shared studio instead.
Drawing on it is incredible, reading papers work well also but a folding phone is better.
I had the same problem with my M4 Pro. So I sold it.
I really like this setup:
iPad + Korg microKEY-37 + KORG Gadget 3 + all a bunch of KORG apps
No subscriptions. Keyboard is wireless but no noticeable latency. In my workflow I pretty much never need more keys but if I do I just use a MIDI adapter and plug a larger keyboard.
KORG apps go on 50% sale several times every year.