Any non RP2xxx pi can be used like that. Unrelated to this post at all? I only fall back to that when there is no interwebs, otherwise connecting over ssh to a normal server is far more productive.
Can you provide an example of rp2350 being useful as a sidecar outside of context being a dev board with GPIO?
I used sidecar to run my portable dev env, so I can write and compile code while I'm traveling. Ultimately, I changed this setup to have NUC-ish machine with me that plugs into a wall and normal Ethernet cable to connect to iPad because even RPi 5 is too slow for anything I do. I don't see linked rp2350 being useful at all.
Discount on what storage? Apple doesn't deal in microSD cards on iPads. There are much easier ways to get microSD or even NVMe on iPad than a linux sidecar.
