In Australia, you place your carry on luggage onto a tray and it passes through an xray machine, at the same time, you walk through a metal detector. Takes about 30 seconds depending on the line.
It still feels incongruent with the reality of the situation in my opinion. I can hop on a bus with 200 other people, or on a train with literally 0 security carrying whatever I want in a bag with no staff nearby either.
That's basically how it is in the US, except that sometimes there aren't enough machines so the lines are long, and it's the spinning scan thing rather than a metal detector. Usually no line in major California airports when I've gone. NYC is hit-or-miss. Just did a transfer through LHR and the security line was insanely long.
It used to be much worse though. I think the new machinery has made the difference.
The bus/train is different because they're harder to weaponize. Everything we got was a response to the 9/11 attacks.