Depends on the context. Where are you referring to?
It is antisemitic to blame all jews for the actions of israel. Part of the resistance to the genocide should be that israel does not represent the jews of the world. If you defend israel's actions, it should be that position that ppl can blame you for, but no one should interrogate you about it if they simply hear you are jewish (or from a jewish background).
It should be a similar point for your russian background. Is your mom occupying ukraine rn? It's dumb to not see her or you as just another person born in a country led by idiots.
Some people will be stupid about it. They will give in to the propaganda that every jew supports israel and every russian supports the regime in russia. It's a sad thing, but in most places, it should be rare for you to have a confrontation with someone. There will always be good people, who you should build relationships with, who understand that youre just another person navigating a complex world.