This is a first hand experience.
If you are sponsored inland by your spouse then yes: Upon AIP, CSQ gives you access to ramq and you will get your ramq card after 3 months regardless of stage 2 completion. If you are a woman, upon AIP, CSQ will give you a temp RAMQ letter immediately upon applying that gives you immediate coverage on pregnancy/abortion (you have to tell them you are or planning to be) related expenses only like genico visits and labor. this letter will not cover other health issues until you get you ramq card.
appying for ramq with AIP is as easy as drinking water. just bring passport, current legal status if any, AIP letter, proof of address like lease or hydro bill....they dont take any other proof of address. if your hydro bill is electronic just print and bring.
If you are sponsored inland by your spouse then also: upon AIP, CSQ give you Quebec resident fees in school. you will pay like quebeckers.