Rob Nelson, Co-Studio Head and Development Director at Rockstar North, confirmed that Rockstar co-founder and President Sam Houser has not stepped back into a role of merely overseeing the overall style. Instead, Houser has been continuously involved in the creative development and direction of GTA 6 since the initial conceptualization phase.
Nelson stated that he and Houser would jointly identify issues arising during development and work with various teams to find solutions. Whenever the game reached a new development milestone, the two would collaborate for several weeks to review the current progress.
The reviews covered both specific presentations, such as lighting and audio, as well as foundational aspects like game mechanics, tone, and narrative. After consolidating their feedback, the two would hand over their comments to the relevant teams for implementation before moving on to the next round of reviews.
However, given the massive scale of GTA 6's map and world details, it is impossible for any single person to examine every item individually. Houser's "involvement in all aspects" primarily refers to his core influence on the overall creative process and key feedback mechanisms, rather than personally controlling every detail.