For all the news banging around about Russia targetting Ukraine, no one should be all that surprised about an invasion. This happening was long in the making since 2014.
For Russia itself, this was a dumb move strategically as it's going encourage the growth of something it sought to cease: the further expansion of NATO. It'll kick into overdrive for 2 additional Scandanavian nations' push to join the alliance: Sweden and Finland. At the moment, these are neutral nations, but with actions going as they are, it'd be a non-surprise to see them clamoring to join.
Russia will come out of this in a worse position than when it in. America will use whatever leverage it has with Israel and China, which can cut the former out of the global trade and arms markets. Not only that, the war in Ukraine is exceedingly unpopular among the Russian people. The younger generations are getting information through social media sites like TikTok and Vkontakte rather than consuming the propoganda that's broadcasted on Russian state media.
Ordinary Russians are seeing the body bags that are coming back from Ukraine, and they're pissed off about it. They're beginning to protest against the war, which is scaring the living crap out of Vladimir Putin. As an autocrat, there's nothing more threatening than peaceful protests.