Yes. I always thought of sanctions as being finance-related, meaning you can't transact with sanctioned groups. I figured it couldn't apply to decision-making/membership in non-profit organizations (that it might somehow violate "free speech" or some shit). Finding out this is not the case is terrifying and one more reason to hate the US (not that we needed more). This might disincentivize some people to contribute to FOSS.

I haven't noticed? Please elaborate

As opposed to Biden/Kamala, who only want to systematically kill around 2 million people.