Think it could actually be the opposite. In that I don't think Putin wouldn't even contemplated invading with Trump in charge. Not claiming Putin thinks Biden is a pushover it's more that nobody can call Trump. He's a maverick, unpredictable and would be much more aggresive in this conflict.
Putin and his inner circle probably knew their would be an avalanche of sanctions but reckoned NATO would stand on the fence. Putin almost decided to back off and had NATO been far more aggressive during the build up of troops on the Ukraine border he might of backed off. Instead of which Biden and the rest just speculated on when the invassion would start.
Once that build up started a "no fly" zone over Ukraine should've been put in place. Putin would've backed off IMO.