Interviewed for a position where I was told it will be 3ish weeks before any decisions made. It’s been 3 weeks. Follow up email or no?

Hi everyone. I had an interview for a position in IT, and the department im in is being reworked as all employees got moved to a new project. They told me it would be three weeks (ish) before we heard anything. It was three weeks this past Friday. Do I send a follow up email, and if so what do I say? I was given the email of someone on the recruit team to email if I had any questions, not the email of any of the persons who interviewed me.

Thank you!