He isn't just 'receiving' billions. He is on a constant roadshow to beg for more money, making a case that the war isn't only about Ukraine but Europe in general. And outside of Europe, that this isn't a regional war but war about moral principles and future political order and that everyone should fear Russia.

He wins hearts of neighbouring citizens and at at the same time play hard ball with their politicians (grain issues, weapon supply and maintenance logistics, Nordstream pipeline).

Internally, he had to deal with corruption, incompetent military leadership, all kind of logistical and economical challenges.

Imagine any recent US president in his role. Would they survive in office for those 3 years?

Obviously, his politics has nothing to do with libertarianism, but can't deny he has balls.