I had this experience at YYZ once in like 2024 at preclearance (Canadian on a TN), it was very nice, didn't even have to hand over my passport. It went away at some point though and I haven't experienced it since...

Also I guess while we're sharing experiences returning home, at least for US -> YYZ I just fill out info at the self-guided kiosks. Officers just say hi, glance at the receipt and mark it, and I'm done. Never been asked anything so far.