Spooning is lying on your sides like nested spoons. It is a sleep position, a comfort position, and a way to have sex with less performance. The person behind can reach around. Penetration, if it happens, stays shallow and lazy unless someone angles with intent.

Arms go numb. That is the tax. A little space at the knees can spare hips. In summer it is too hot for some pairs and they become chopsticks instead of spoons, close but not stuck.

As sex it favors unhurried rhythm and talking into the back of a neck. As comfort it needs no sequel. Either use is legitimate. If you only spoon after arguments, that is still a start, and you may also need the argument to change.