Choosing the Depth of Field and the required T-stop to achieve the same totally depends on the 'Story' and what kind of mood/feel that the director and cinematographer have decided for that particular scene. Once you've decided your look/feel/mood for this with your director, then everything else falls in place.
would suggest you to read this article.
https://www.studiobinder.com/blog/depth-of-field/
Choosing the Depth of Field and the required T-stop to achieve the same totally depends on the 'Story' and what kind of mood/feel that the director and cinematographer have decided for that particular scene. Once you've decided your look/feel/mood for this with your director, then everything else falls in place.