@adamst2020, When you say you are waiting on them to make a decision, can you be more specific? Are you talking about the IPEB board, formal board, MEB, VA, or medical?
I don't know anyone that has had success with filing an IG complaint in this process, ESPECIALLY during COVID. Keep plowing your own road... just keep your expectations manageable. IG will inquire, but there are so many obstacles in the way that they will just give up. I have seen better luck when people file a congressional inquiry in your situation. Depending on your congressman / congresswoman, this can at least get you information within a few months. IG is just going to piss off people without helping you.
Godspeed