I believe it depends on the options. I think they aren't available with 5th wheel prep if I recall correctly. As with anything , there may be an ordering procedure around this though.
FWIW, the 2025 2500/3500 manuals are now available on RAM's website if you want to do some reading. Looks like they added them Friday night as me posting this. (I'm one of those who reads manuals before even buying a truck. LOL)