Preserving the look of sRGB graphics

Since we use substance painter/Mari ,it is PBR already texture tool right?
For example , i set the basecolor to ‘‘Dry sand’’ RGB linear to 0.4, then i load the basecolor texture in maya and set the colorspace to “Utility - sRGB - Texture”, but it dark the basecolor texture again , make it lower than 0.4, does this break the PBR workflow? cause i already set plausible values to the basecolor but ACES make it darker .

THis is the main thing make me confuse about ACES “Utility - sRGB - Texture”
We now use “Output - sRGB” to preserver the value.