Or why not be landlocked? It suits Austria well. They're a former land empire too.
Comparing Austria to Russia, is as we say in Russia, to compare an ******* (sphincter) to a finger. When Austria was trying to elevate itself to the level of Archduchy, Russia was already a kingdom of many centuries under the control of a legendary dynasty. Our princesses married French and Danish kings, meanwhile they groveled before the Bavarians on their knees.
While they were building their dysfunction of an HRE we were building a unitary state of durable power.
While they needed the entirety of Europe to stop the Ottomans, we wiped the floor with the Turks single handedly - so much so the Brits and French decided they need to help the Turks.
Their famous diplomat, Metternich, was good at negotiations with Napoleon, on the back of Russian manpower.
When they lost their place to the Germans, we took note, and carried on to be one of the two superpowers of the twentieth century.
Comparing Austria and Russia, is almost like comparing Ukraine and Russia. Hahahahah.
BTW, forget the Turks - did I mention we stopped the Mongols, and then defeated them and digested them? So much for Austria as the "Shield of Europe".