Most likely the war will end in 2024 or it could have been sooner if US provided Ukraine with long range weapons and now the Biden administration is seriously looking to provide Ukraine such weapons which would end the war sooner than expected.
Even if the US gives Ukraine a wide range of weapons from now until 2024, the Russians won't give up their position on Ukrainian soil anytime soon.
Because the entire war has been fought on Ukrainian soil, Ukraine should exercise caution regarding the ongoing conflict with Russia. The same level of weaponry that was to be given to Ukraine's armies to destroy the Russians, will be the same weaponry Russians will be applied on them back.
The US election will take place in 2024. I sincerely hope that a new administration, not Biden, will be in charge in order to work toward a lasting peace and a referendum between the two countries (Ukraine and Russia).