Its real and the next few days Russia if they are smart will rapidly try to spread out their equipment and forces within the first 100-150 miles inland.
What might end up being the wildest part of this is that Russia with how they have acted during the war wont do anything to disperse their bases/operating posts and there are more than enough missiles that if Ukraine launches a wave or two of drones first whole areas of troop concentration could be wiped off the map.
This really likely could have been avoided if Russia hadn't done the massive energy infrastructure attacks the last few weeks. Putin should have just down played everything until Trump took over in hops for a better solution but now its not there