I’m always curious about those who use the iPad as a terminal for coding on AWS/etc. Do you use a keyboard with FN keys (e.g. F1, F2)? This has been the main drawback for me on using an iPad to code: the attached keyboard/case combos for iOS never have FN keys. I realize I could carry a separate physical keyboard, but that takes away a good bit of the portability.
I live in vim, write mostly python, and don't need function keys. An iPad gives me a range of vim ports, shells, python environment and one really good gift client.
Also the Smart Keyboard is simply the best shape for typing on a seat-back tray table.
IntelliJ works fine without F-keys, but I prefer a bit bigger keyboard over the folio ones so you an almost normal keyboard.
90% of normal people usage works fine. For coding I use remote desktop to AWS, it's actually nicer to work with than the average laptop because you get so much more CPU power and bandwidth.