If it is a portable structure made from some type of fabric be it cloth or thin flexible plastic it is a tent. Even it if is just a tarp or a bed sheet hung over a rope between two trees. The words, shelter, screen room, popup, canopy, awning
, etc are for marketing purposes to distinguish the form, function and features.
Even a fabric awning
attached to the side of an RV or a sail shade or shade cloth is a a variation of a tent. Although if it is attached to an RV you probably won't get any flack about it since it is well secured in place.