Which iPad Pro (M4) config should i get?

Hi ya'll,

I'm planning to upgrade from my 2018 12.9 inch iPad Pro and I'm not sure what config to get. So the 11 inch 1TB Wifi model or 11 inch 512gb Wifi+Cell. I want the smaller 11 inch because it feels better in the hand and I would like to carry it around with me. Also, I'm getting the folio case instead of the magic keyboard because I don't feel like theres a need for it since I have a Macbook Pro. And of course I'm getting the Apple Pencil to take handwritten notes.

Questions:

1. 11 inch 1TB Wifi model or 11 inch 512gb Wifi+Cell (1tb cellular model is not in stock where I live)

2. Does the extra core and ram make a difference? (I will be taking notes, doing video editing, drawing, and some 3d modeling)

3. I'm sure I won't need 1TB of storage (512gb seems like the sweet spot for me), but out of curiosity why do people buy the 1TB model? Do people actually use that much storage on an iPad or its just for the extra specs you get?

4. I'm still not so sure if I should get cellular model or not, It's nice to have a connection at all times but I can just open hotspot on my phone or use wifi. (I wanna carry it around with me and I should have my phone with me 90% of the time, wifi is pretty fast at home)

5. People with the smart folio case, what do you think of it? Is it any good?