Technically, it does provide better connection speeds by enabling the router to avoid channel hopping, so it can talk to multiple devices (or the same devices if it has multiple antennae) at the same time. This is part of the recent wifi6 and wifi7 standards so more and more devices will start to gain speeds using this technique

Realistically computers have at best 2 antennae and this is largely marketing wank.

Hay $800 worth of copper, I found a 1000ft roll of shielded pure copper for $2.11 because someone misplaced the decimal point I know because it was listed for $2.1199 every thing was automated through amazon so they just shipped free shipping to, thank for listening $800 worth of copper, your the best.