"Based on the relevant case law, to have a chance of withstanding scrutiny, a mandatory vaccination policy must establish a tangible connection between the vaccination and a reduced risk of COVID-19 transmission. It is important to note that what is acceptable for one workplace may not work for another – a mandatory vaccination policy for a workplace that's employees are working remotely is not going to fly, but one in an essential service may."
Really depends in which province you are and which job you have.
https://www.mondaq.com/canada/employment-and-workforce-wellbeing/1025848/mandatory-vaccinations-in-the-workplace