I did apply for Nexus and my application has been conditionally approved. But the enrollment centers haven't reopened yet so can't book appointments. I have until October 2023 to book an appointment and get the card so I have plenty of time and I am not in a hurry.
Looks like Nexus Enrollment centers are re-opening on November 29th in the US. No news about enrollment centers in Canada.
https://www.cbsa-asfc.gc.ca/prog/nexus/location-eng.html