This isn't about the taste. It tastes exactly the same. It "tastes worse" on nal because it doesn't actually taste all that great when we don't have artificial euphoria forcing us to be happy.
This was a big issue for me as well, but drinking without nal is just not an option. This is a lifetime thing.
You need euphoria in your life. It's a natural part of life. With no AF days and therefore no nal-free days, you're kinda sucking all the joy out of your life.
Why not try an AF day with vigorous exercise? It probably won't fix everything magically, but it's loads better than drinking without nal.
If natural endorphins just aren't doing it, there are highs other than alcohol. Please don't drink without nal and get readdicted -- which is totally what would happen.