@Werwolf

no there is no such version because even though the interface changes are a more recent added feature to ACG, the first Aesthetic Cinematic Gameplay release already included new technologies and components.

In addition please be aware that even the oldest and meanwhile unsupported/abandoned Aesthetic Cinematic Graphics (predecessor) mod also included component + balance changes in order to being able to provide the graphical experience you probably saw in videos.

so even though some parts like the current interface might theoretically be separate-able from the current Aesthetic Cinematic Gameplay mod, you would still need many of the other balance/gameplay changes if you wanted to have an ACG graphics-experience in game because it's all connected to each other (FAQ of ACG explains it)

Is there a version of this mod that doesn't affect the interface at all? No new technologies, no additional slots. Only effects and ratios of objects in star systems.