We've been having helium shortages for years:

> The current helium shortage is the fourth to occur since 2006 and is being caused by shutdowns at several major helium producers. The shortage has been exacerbated by the war in Ukraine, as Russia is one of the world’s top suppliers of helium.

https://www.thecrimson.com/article/2022/6/24/helium-shortage...

I have a friend who teaches chemistry at a well known university that can no long run some labs because the equipment to run them needs, you guessed it, helium. This has been a long running problem that the Iran war has exacerbated, but is by no means the cause.

Sufficiently long that in the TV Series “The Big Bang Theory”, one subplot involves the characters buying helium from a black market dealer to perform their experiments