If you’re new to Splatoon, we’ve explained all the steps to upgrade your gear and abilities, farm Ability Chunks, and increase your Star Power in our guide.
There is currently a major glitch in Splatoon 3 that is "impacting the ability of inklings and octolings to earn points in preparation for the game's first Splatfest."
In Splatoon 3, you can find the locker room in the lobby. It's to the left of the Shell-Out Machine and can be accessed through a pair of sliding glass