In one line
What a brand may do with the content it paid for: where, for how long and whether in ads.
A Pune salon pays for a video it may post on its own Instagram page for six months, and nowhere else. Those are its usage rights.
Buying a Reel does not transfer every right in it. Use on a website, in paid ads, in print or after a deadline is something you agree, and usually pay for.
Agree: the channels, the period, the places, and whether paid promotion is included.

