What about the class of admission?1. No, new I94 can be issued anytime by cbp(doesnt matter if its avr). Technically you are seeking new entry whenever you enter the country hence they can very well process you as a fresh candidate.
2. No difference(except not sure what would happen if there is any pending applications with uscis - not heard much of stories of that kind)
My last visa is a F1 Visa but in June 2019 I changed status to H1. I don't have a H1 stamp yet.
The i94 that I got issued at border says class of admission as F1. Shouldn't that have been updated to H1?