RLS For Content Author

We recently did a poc on Power BI but reach an dangerous limit of RLS feature.

As we manage data from 2 organisations, we have 3 kind of user :
User with access to org A;
User with access to org B;
User with access to both;

For now, we created a dataset using RLS to filter out the (confidential) data the 2 first set of user can't see... However, these user are the "Power User" of their organisation, and become our main content author.

I setup a workgroup including Power User from the 3 groups as they collaborate a lot, I tried the following combinations without success :
Every members of the group can Edit Content : Bypass RLS
Every members of the group can See content : Can't create new report
Every members of the group can See content but is Admin : Bypass RLS

For now, we "fixed" this by filtering out the data from the dataset itself and create 3 groups, but it's unmanageable for maintenances !

Will it be possible to include RLS for content author ?

I think the ideal scenario should be :
Every members of the group can Edit Content but can only see data AFTER RLS is applied !

Thanks !