I took a look at the battle, it's a kind of video that focuses on humor.
Then they chose Beerus as her opponent, the dragonball fandom would have been hurt if it turned out differently.
Galaxia has been greatly underestimated, much of her inherent and subtle cruelty has been turned into aggression.
it's hard to estimate what characters can or can't do when they come from different stories.
It is true that beerus has not yet shown his full potential in the series, however Galaxia has infinite energy as a trump card.
Then Galaxia would certainly have tried to pulverize Beerus's body.
However, I am happy that space has been given to a Sailormoon character, since it is an underrated manga, let's face it, it is difficult for a guy to go and try to read the Sailormoon manga which is a shoujo, maybe he even took a look at the version animated of the 90s and thinks everything will be resolved there.
I hope that after this battle someone will want to read the Sailormoon manga, if only to compare if the information given is all correct.