Reply To: What exactly did we get on Shavuos?

Mishneh Brurah implies we received all mitzvos (reason for milchigs).

Chazon Ish discusses at length (Orach chaim 128)

Ramchal (Da’as Tevunos) explains that we did NOT receive the Torah (ilu korveinu lifnei Har Sinai vilo nusan lanu es haTorah), rather became mitzuveh v’oseh, which empowered us by giving our actions the power to affect the world on a cosmic level.