This not a good response at all, it mostly shouts emotional phrases about "because reasons" and "zero sense" and does not engage with the parent comment.
In short: We can't know all of Mr Putin's reasons. He may have expected a second Trump term, and didn't think we was "waiting until Trump was gone" at all. You don't address the damage to NATO that a second Trump term would have done, and that Mr Putin so clearly wanted Mr Trump to do for him. Come one, engage your NATO obsession one more time?
Mr Putin also clearly didn't expect "massive resistance across the board" or that it would be "1000x harder on himself" to take Kyiv in 2022 so this argument doesn't hold up.
The words that you put in my mouth "you think Putin could have easily taken Ukraine with no resistance from the US" show a confused thinking - are you saying that "resistance from the US" is the only thing that prevents "easily take Ukraine"? I don't believe that, and in 2022, no one should. It's simplistic rubbish that forgets about the agency of the Ukrainian people. Facts on the ground have disproved it.
Finally if you want real answers, ask an expert - Fiona Hill, Molly McKew, Anne Applebaum or the like, not strangers on the internet.
I agree that Mr Putin's actions since February make "zero sense" - his speeches are unhinged and his invasion plan has failed. But an attempt to claim that the cause is in "Trump vs Biden" is ridiculous and self-obsessed. The cause is in Moscow. The answer is in Kyiv.