Dec 2, 2020, 10:2612/02/20
Are you referring to the progression ceiling or skill ceiling?
Everyone in the game progresses to unlock items, chests, mechs at the same rate. Whether you play 6 hours or 30 minutes if you do your daillies you will advance/unlock the same items. This keeps everyone on the same playing field (unless you add money into it).
However, this doesn't hold true for the skill ceiling. Someone who is on for 6 hours will (should) be more adept at the mechanics and ability components of the game. For instance, aiming with the longarm rifle or using jump jets to reach other parts of the map.