Quest 3 or Quest Pro?

That's a real question, because Quest 3 specs are not announced on the official page.

Per scene, the game I am working on uses only 1 lightmap, 5-10 materials, 1-5 realtime lights, and 1 or 2 dynamic objects only, however the fps is very low and make it unacceptable to play without Link. Since it is a roomscale multiplayer game, It cannot rely on Link for the final release.

I need 4 headsets, so before to buy it I am wondering if the quest Pro will stay above the Quest 3 GPU capabilities or not?

As a developer, Is it possible to develop and test on quest 3 before the official release date?