Chess.com discusses how tiebreaks are done in the Chess Olympiad:
Both the Open and Women sections of the Batumi Olympiad were decided by tiebreaks. Like just about every two years, this led to criticism on chess forums. According to grandmasters Peter Heine Nielsen and David Smerdon, the time has come to actually do something about it.
The Olympiad-Sonneborn-Berger-Tie-Break without lowest result system allows scores by each team’s previous opponents determine who wins the gold — and they are very much volatile until all the scores are in.
For me, in order to solve this dilemma, TB3, which is game points, should just instead be exchanged with TB2. That way, it is clearer how much should the top teams vying for the top post should win in order to win it all going into the final round.