But a higher temp would likely only catch a fraction of those on the plane who are infected. And of course just one asymptomatic shedder on the plane could infect many others during the flight.
You are dealing with hearsay information and trying very hard to make it fact.
You have a rumor, that is all. I’ve entered this country a hundred times port of entries and have never just walked in without some kind of questioning.
Sorry I am not buying the hearsay rumors.