I've always been wondering if the subject pronoun "We" can be used as an indefinite pronoun such as "Everybody" or "One" to refer to people in general.
Probably not. But maybe there is a usage out there . . .
In general, the pronoun "we" is characteristically used for the speaker or a group that includes at least a speaker.
There is a usage where the pronoun "we" is used for a third party or the addressee, such as when a doctor asks the patient, "Have we taken our medicine this morning?"
There is a usage of the pronoun "we" that is interpreted as meaning the single speaker, e.g. "Give us a piece of your pie". Though, it applies only with the accusative and perhaps the genitive forms. There is also the honorific singular "we" of Queen Victoria's "we are not amused", though supposedly this usage is no longer current (2002 CGEL, page 1467).
There is the authorial "we", where an author can use the pronoun "we" in text to sorta involve the reader, e.g. "As we have already seen in the previous chapter . . ."
(Aside: There is the personal determinative "we", but that's probably a different topic.)
This is what I can think of at the moment.