Arjuna raises three precise questions. Lord, how do we recognize someone who has gone beyond the three gunas? What does their daily conduct look like? And what is the method for getting there?
These are not the questions of someone lost in abstract philosophy. Arjuna wants practical answers. He wants to be able to look at someone and know: this person has crossed over. He wants a picture of what such a life looks like in practice. And most importantly, he wants the how — the actual path to follow.
This mirrors what Arjuna asked in Chapter 2 (shloka 2.54) about the sthitaprajna, the person of steady wisdom. Arjuna consistently pushes Krishna from theory to practice. He is not interested in a lofty ideal he cannot act on.