What is the last estimated date for delivery?
Are any of the packages past that date?
You can open an Item Not Received claim if they actually are late.
I suspect that between confusion about the US tariffs on imports to the USA, a steep learning curve on Canadian retaliatory tariffs on US imports to Canada, and perhaps some "work to rule" actions from some workers, there may be delays rising.
The best advice about tracking is that it is a Seller Protection against unwarranted Not Received claims.
Tracking does nothing to protect the buyer. Tracked shipments do not move faster nor are they treated more gently.
Mark the last date for arrival on your calendar and don't watch tracking until then.