@Dan *****
actually thinking back there were cases where people who had been living here on back-2-back tourist visas were denied entry pre-covid and I recall another one where someone with a passport full of covid stamps went out, got a tourist visa and came back but was denied.
It's not common BUT a visa doesn't guarantee your entry, all it guarantees is IF they let you in they let you in for as many days as the visa allows
No one will know how it's gonna play out until people start bouncing out and back
Certainly entering by land lessens the impact of a denial of entry because you're just turned around and sent back to the country you stamped out of a minute ago versus flying in where they can send you back to where you flew in from OR back to the country your passport comes from 😮