Literally any use of any technology that requires transfer of any EU personal data to a company that has any presence in the United States, is currently illegal for anyone in Europe.
But we're playing this silly game where data protection authorities slowly realize "oh - Google - they have US presence right? Let's ban them," and then this flows down to EU businesses.
The reality is the law is clear: any use of ... Google... AWS... MSFT (even with EU hosting)... Notion... Salesforce... GitHub... Atlassian... All of this is currently obviously illegal in EU.
So we now live in a weird world of, everyone is breaking the law, who do we call on it?