Assets of a few people were frozen, and yes, that did cause a lot of consternation. But nobody is seriously moving away from the dollar.
BRICS-Coin is a meme, petrodollar is also largely a meme, the petrodollar system did exist for a few years in the 70s, but what floats the dollar now is the fact that it has the deepest credit markets. If you want to borrow money, you borrow USD, there just isn't any competitor out there.
The Dollar is weakening, but it is at a snail's pace and the US is far closer to a revolution in the oligarchy than it is to a loss of global dollar dominance. There is one caveat however: The USD may collapse if it is intentionally collapsed by the US government.