Repost: dynamic legend on Power BI using DAX

Hello there community! 
Hope you're doing all right

Few days ago, I posted this question: https://community.fabric.microsoft.com/t5/Desktop/Ways-to-make-a-legend-dynamic-by-using-DAX/m-p/3683060 which was techically solved, it worked like magic! However, it introduced few concerns with the modelling and I'd like to know if there's another way to achieve the same results, but with a constraint:

- not duplicating dim tables

if it's a measure that I can apply to the visual, better.... but duplicating the same table unfortunately won't work for me 'cause it doesn't match well with the currently modelling. It's a shame, 'cause I really liked the solution.

Any ideas? =]

Thanks in advance! 🙂