They need to eliminate that "feature", which is nothing more than making it look like the government is doing something. Most people that I know who have crossed the border recently have said the CBSA agents were not aware or did not have access to the data entered in ArriveCAN, nor the time to look it up for each and every person crossing. For a land crossing that requires a secondary (park, get out of the car) inspection. Also, several have been selected for random testing and quarantine to wait for the results. A friend told me last night that while he enjoyed the extra 4 days off work, he was glad his sick benefits covered it. (Both he and his wife tested negative, with her results arriving the next day.)We took advantage of the new rules and went to Quebec on Saturday for a little shopping and dinner. Other than having to use the ArriveCAN app, the border experience was completely uneventful.
That said, I don't really know how Amtrak can effectively monitor whether or not people have entered their information into ArriveCAN, which could make the situation at the border crossing problematic.