Trump's behavior prior to the election informs what his behavior would've been after the election. Before the election he was attempting to weaken the Ukrainian military, and he was never stingy when it came to complimenting his dream daddy Putin.
Ahh there we go. Can never stray too far from what Trump is telling you to think, eh? He's a morbidly obese geriatric pedophile with narcissistic personality disorder. Get better role models already.
The Russian economy and stock market is literally dead, and Putin has repeatedly bitched about the sanctions. I'm not sure what else you expect Biden to do, short of dragging us into World War 3 with a moderate to high chance of total nuclear annihilation. Trump would be more likely to nuke Canada than get into a conflict with his biggest financier, we already saw that demonstrated when he abandoned the Kurds to Putin's brand of imperialism.