I can put my experience having been in Canada for close to 2 yrs now as a PR. This is for Vancouver, BC. A disclaimer though, not discouraging anyone here
1.
Cost of living - Indeed skyrocketed. 1 bhk rent is close to 3k (
https://rentals.ca/national-rent-report) and I can agree. I see 1bhks listed for close to 2.6K around my area. Price of grocery/vegetables too has been on rise.
2.
Job Opportunities - If you are looking for IT related jobs, very less at the moment in Vancouver. However I think this is temporary and as situation improves you will see more opportunities (just my thought). Ontario is much more conducive to IT related jobs.
3.
Health Care - This is scary part. Clinics are not accepting new patients. Waiting for family doctors is close to 1 yr. Also unless its emergency, waiting time if you walk in, may go into hours.
4.
Weather - I found this to be the best part. Very less pollution, good and clean air to breath. Not so harsh winters and snow (atleast in Vancouver).
5.
Transport - Very well across Metro Vancouver area.
There is no fixed time to find a job. But I would definitely suggest you start applying to jobs from your home country as soon as you get CoPR. Best luck to you !