For those who want to achieve a more GTA-like prelight on their models, when creating a color attribute, choose "face corner" (https://prnt.sc/0uO-QH1jA-jW). This will help to prevent the 'leakage' of color onto other faces in Blender. Additionally, it is recommended to use "set vertex color" instead of a brush.
With 'leakage':
https://prnt.sc/lBK51pFfJhKL
Without 'leakage':
https://prnt.sc/ivXUniA0_ZWD
In other words, this will allow you to clearly define the prelight on specific faces, without the 'dirt' that is not present on the original models in GTA.