This looks like a full on invasion of not just the historical Russian speaking areas, but of all of Ukraine (with the possible exception of Lviv and Polish leaning areas in the far NW). I'm guessing the dots in the bottom left are Putin's forces in Trasnistria, which he has been conveniently keeping there over time for a moment like this - to take Odessa and nearby cities.
Having forces on all sides doesn't mean they'd actually invade from all those positions though. The troop placements force Ukraine to spread their defences extremely thinly, which would be useful to the Russians if they want to invade just the east.