Keep in mind two things: Putin has no intention of invading Ukraine. It is an exercise in brinkmanship, seeking to extract a promise from NATO never to accept Ukraine as a member. It is not worth going to war. Second, Biden is trying to position himself so that he will look like a "leader" no matter how this turns out. When Putin backs down, he will claim it is because of the threat of sanctions that he orchestrated. These meetings and such are all part of a figurative kabuki dance.
But the larger issue that few are talking about is that Russia has Western Europe by the figurative balls. They NEED his natural gas, and that is not an exaggeration. Without it, their economies will go into the dumpster. So they will go along with sanctions UP TO A POINT - that point being, if Putin threatens to cut off their gas, they will back down like little girly-men.
I fail to see why Biden - and for that matter Trump - has apparently not even looked into supplying Europe with LNG, which we have the capacity to provide for decades into the future. Every BTU that we provide will come right out of Putin's pocket, so to speak. I don't get it.