Home Slice said "No tests required of any kind? "
I have crossed several times recently. On the US side, they may ask you if you're vaxxed but they probably won't. Have proof off vaxx anyways. Canadian side, be sure to fill out the ArriveCan app before leaving, it's super easy now and you don't have to answer any questions related to quarantine or do testing of any kind, just upload a pic of your passport and your proof of vaxx and you're good to go. Estimate what time you'll be crossing, they're not going to be upset if you're off a bit. When you get to the border, give them your passport , not your arrive can receipt. They told me they can see if you filled it out on your passport when they scan it. No idea if that's true or if they really don't care to scan arrive can, but they will ask for your passport if you try to give them arrive can and are highly unlikely to look at arrive can at all.
Still, you must fill it out, don't skip it, it's so simple now without the quarantine questions, etc, anyways. Otherwise, it's all just like in the good old days! Very normal and easy. They will be wearing a mask because all federal buildings have to, but you are not required to.
Any other questions?