They vary a lot and are key to understand when developing … three typical usages area’s exist even though there are obviously many more.
Distinct usage area’s vary but the most common ones are “Near Field Monitors”, “Home Usage” and “Public Address”.
Near Field Monitors … mostly used in studios (1).
Regular loudspeakers for audio fans home usage (2).
Public address when high sound levels are key (3).
Obviously some are somewhat in the middle of this simplified shortlist of course.