The US consulate in Russia is closed since the war began -- getting a visa wouldnt be easy, and universities have to get DHS approval to issue an I-20 status document to a non-American. And that's before any issues around eligibility for scholarships, bursaries or loans.

As a foreign student myself, I would not risk trying to navigate the US visa process knowing my status could be jeopardized at any time. Berkeley isn't the only university in the world worth attending.