*^It’s a commercial size jet, but I lands either at military bases, or if it lands at a regular airport I would assume the passengers don’t go through regular security. Some airports share runways with the executive airport, so even the executive airport has enough runway length to handle larger jets.
Our president usually leaves from Andrew’s Air Force base when leaving from DC. My parents flew out of there last year I think, I can ask what security was like for civilians if anyone is interested. My dad is retired military.