Take 2 owns Rockstar. GTA 6 is not an indie title. BG3 is developed and published by Larian Studios. BG3 is an indie title. CD Projekt is the publisher. CD Projekt Red is the developer, there is nothing strict about it, they just have similar names.

I think you confuse with developed without publisher and releasing the game to the public. It’s like saying Steam is the publisher, after the game got released on Steam.