Hey, Thanks!
I just received updates from IRCC whenever there was an update in my application, like medicals or biometrics or passport request. I did receive one email stating "We are working on your application" which I believe to be a general email sent to many applicants because of delays caused by COVID.
My eligibility review and the background check as far as I remember was always in progress, I might have missed it if it was in any other stage.
Good luck on your application. I'll keep this space updated for my passport stamping timeline. Right now, Bluedart is yet to deliver my passport as they state: "Holiday, delivery next business day"