How to strip dialogue from a soundtrack on a blu ray?

I see that a poster called Cathy asked a similar question in 2018 but didn’t get a satisfactory response?

I would like to lift the dialogue from the mix of a film, add my own score and re-edit.

I have access to a full suite of Adobe, plus add ons like Boris, Red Giant etc.

I am thinking that to save space there may be a muic and FX track that is standard on multi lingual films with the selected language added at playback? Or is it may separate tracks? In my edit so far I have taken the music I wish to add and synced sound effects but I am stumped with dialogue!

Anyway - can anyone help suggest a method to lift dialogue?