ellenmoto Hello. I don't know as much about getting into Canada as a foreign national, but I will tell you what I know. There does seem to be different rules about flying vs. driving in. You do not need to quarantine in a hotel for the 3 days when crossing a land border, but you do still need to quarantine in a home for 14 days. You will need to quarantine away from your children, or show that you can be seperate from them enough for those 14 days. I have a son, and he will have to stay with family for my quarantine because he is not allowed in the house during that time. For flying in, you will need a 3 day hotel quarantine. Your flight will arrive in Vancouver. After you get the test back, you head to your destination and complete the rest of the 14 day quarantine there (about 10 days likely). If you test positive, you go to a government facility for at least 14 days. So far they haven't started the hotel quarantine, but they are promising any day now. They also say land borders can change at any time.
I'm sure you've visited this page, but I thought I'd link it just in case. It goes through the documentation to get ready.