iirc the Novorossisk port is kind of bad, right?

Regardless, Baltic Sea access isn't super great when you're entirely choked out by Denmark for access to the Atlantic. Same goes for Black Sea and access to the open seas - Turkey and arguably also Spain/UK block several times on the way.

The Pacific ones freeze over and are kind of blocked by Japan, essentially.

It's going to be interesting to see how much Russia's geopolitical position improves from rising global temperatures - if their pacific ports become ice-free, then that changes the game quite a bit.