IRCC started to invite applicants to take the Citizenship test online. If you have been invited you have 21 days to take the test, must be in Canada to take the test but you can wait until the in-person tests resume, if you prefer.

IRCC will invite applicants based on the order of applications.

https://www.canada.ca/en/immigration-refugees-citizenship/services/canadian-citizenship/become-canadian-citizen/citizenship-test/tutorial.html