Setting up 2-2-3 work schedule alarm on iPhone 14

That fact that it's capable of doing something doesn't mean that someone has written the software to do that.

There are two options I can think of. One, look in the App Store for an alarm app designed for shift workers or people with a changing scheduled. Two, write a Shortcut to handle things for you.

Shortcuts User Guide - Apple Support

Of course, there's always the option recommend by health care professionals: get up at the same time every day.

You can set up as many alarms as you want.

How to set and change alarms on your iPhone - Apple Support

I would set up two recurring alarms, one of the days on shift and one for the days off. So, for example, 7:30am M, T, F, S,Su and 8:30am W, Th.

Or are you saying that the days off/on change over time?