I wonder how Radio-Canada calculated the urban density. 1,945 people / km² for 2021 for Ottawa - Gatineau according to the website linked below, rather than the 2,520 / km² cited by Radio-Canada.
Kanata is far enough that they consider it a separate urban area with a surprisingly higher density than the Ottawa - Gatineau urban area, 2,199/km².
Map of Ottawa urban area :
https://www.citypopulation.de/en/canada/ontario/_/UA0616__ottawa_gatineau/
Map of Kanata urban area :
https://www.citypopulation.de/en/canada/ontario/_/UA0399__kanata/