Israel has been bombing Iranian targets outside of Iran for a while though. It's largely the reason they try to keep positive relations with Russia - to be able to continue bombing Russia aligned nations: https://www.nytimes.com/2022/03/23/us/politics/pegasus-israel-ukraine-russia.html

It's "just" a continuation of the Israel-Iran proxy war which has been going on for some time. I don't think this is a meaningful, if any escalation.