The Russian Ministry of Defense has issued a clarification to all who demand that borders be closed or limited: since this mobilization is partial, the law that would preclude men of conscription age from leaving is not in effect.
In other words, if things keep the way they are, I may be able to legally and successfully cross the border into the EU when my visa comes through.
The clouds on the horizon are Putin's signing the declaration of annexation of the occupied regions of Ukraine tomorrow (September 30th) at 3 PM, Moscow time. Afterwards, he's supposed to give a speech (described as "lengthy" by some Russian sources) afterwards. That speech could include him declaring martial law, which would prohibit men of age from leaving the country, as well as see increased security within the country.
If that doesn't happen, my route into the outside world remains open.