That was the first article that came up when I searched today. Since you are so interested you could search yourself. The article I saw yesterday identified the bomber and the nasty bomb it carries. Ukraine has no defense against it so that’s why everything shuts down when it flies. That’s called air superiority, you can fly over your enemy’s country and the enemy can’t stop you. This is nothing to get angry about, it’s just the situation. Russia recently made the bomber capable of refueling which means it can keep them flying 24/7 if it wants. That’s what Z was freaking out about.
The Russian planes mentioned in the articles are used to launch long distance cruise missiles, so the risk of cruise missile attacks increases dramatically whenever they take off and fly around in Russia.
Ukraine does have defenses against incoming cruise missiles, and most of them get shot down. But some don't so the government posts air raid warnings whenever there might be an incoming cruise missile from Russian territory.
Nothing about that situation is what "air superiority" means. In fact, the same air raid warnings are posted when a Russian ship launches a cruise missile.