I just really really really want the Primal Strike bug to be fixed before I make any suggestions for Moon Druid balance. The wild shape forms are largely used for tanking/damage in combat, and having their damage being negatively affected by this bug is very unfortunate.
I suspect it must be a hard bug for Larian to fix, considering how long it has taken them to address it (relative to other issues they have patched thus far).
Monks receive a very similar mechanic at lvl 6 (Ki-Empowered Strikes) where their unarmed attacks will count as magical when attacking enemies with physical damage resistances:
https://bg3.wiki/wiki/Ki-Empowered_StrikesI haven't seen any reports of this mechanic being bugged on Monks?
Otherwise I don't think Moon Druid is really in that bad of a spot.