I think DPI WIzard's summary here is nicely succinct.
But here's how I will use it personally:
Set both ADS and Scope aim classifications to Monitor Distance - Dynamic and also to the same values. The defaults of 200% for both are good. I would leave hipfire on 360 distance.
Set the game's base hipfire and FOV to your preference, then match "all" aims. For example, here's using it from Battlefield 1 hipfire and FOV, to scale all the Battlefield V zooms
You then get the outputs for each scope multiplier
Because the default scaling in the game uses monitor distance 133%, dynamic scaling here reduces the sensitivity of the low zooms a little, and increases it for the high zooms by a similar amount in this example.