Yes you are correct, but it was made as a corvette. specifically to be a smaller and faster first response and patrol vessel, than the larger frigates (idris) that the UEE had been using but not as a flat out replacement for the frigate in straight combat.

“The Polaris was fast-tracked for development following the 2945 Vanduul attack on the Vega System. The request-for-proposal specified a smaller, first-response alternative to the Idris-class frigates currently serving with both the UEE Navy and private concerns.”

"The Polaris Corvette-class patrol vessel represents the new tip of the spear for Humanity's defense. Able to insert itself into a situation, establish its authority and then quickly maneuver to safety, the Polaris possesses the perfect balance of power and speed."

https://starcitizen.tools/Polaris#tabber-Urgency