Well, the bottom line still continues to remain for me whether I'll even have enough companions to fill out a party under the best of circumstances:
(1) I won't accept any evil or evil-leaning companions in my party.
(2) I won't accept having to play with empty-suit no-personality hired mercenaries.
So am I even going to have three companions that will satisfy me? I rather doubt it at this point. So for me, talking about losing companions I don't use is a moot point when I may not even have the necessary minimum of three companions that I *will* use. And this is all not even factoring in that I will only play BG3 with a mod that allows me to have a 6-person party, in which case I will need a minimum of five companions that I would be willing to have in my party.