I feel that the Ruble has just temporarily collapsed and will recover in the near future which has already helped BTC rise upwards though it hasn't managed to breach the $50K mark yet.
Putin won't be able to drag this war for much longer for economical, financial etc reasons which is why he is trying his best to make Ukraine submit asap who aren't showing any signs of giving up.
Whatever the outcome, BTC will continue bouncing up and down, but won't breach its ATH in my opinion.
The ruble exchange rate fell because Russia was hit by a lot of sanctions from western countries, so Russian people flocked to exchange their assets into Cryptocurrencies.
And this will more or less affect the price changes of Bitcoin and other Cryptocurrencies.
When it comes to war with Ukraine, Russia will absolutely not back down or stop invading even though Ukraine is widely supported by Western countries.
Russia is a rich country, it's not that easy they will run out of funds for war.