I’m away from my computer at the moment so I can’t test this, but I believe when you’re looping through post types (as you’re doing with <Loop type=x,y,z>) you can display the title field of the post type with <Field title/>. I’d assume in that case that you could also run some conditional logic with <If field=title value=x>. Let me know if that works for you!
And if ever you were trying to do this kind of thing when you’re in a singular post and not looping through post types, you could use <If field=type value=x>.
Ah, sorry, it’s not looping through post types. It’s a normal post loop we’re just filtering by multiple CPTs. So it’s about the post type of the specific post within the loop. Ie: <Field title /> would return the title of the post rather than the post type.
I think you may have solved it anyway, I tried this: <If field=type value=x> and it seems to have worked.
So in my original example it comes out as:
<Loop type=cpt_one,cpt_two,cpt_three>
<If field=type value="cpt_one">
Output specific to cpt_one
<Else />
Output for when it's not cpt_one
</If>
</Loop>