Yea, but chess adapted to it and is restricting use of engines. When you play a tournament you are banned from using a phone and will be disqualified if you do so. Online tournaments don't have a prize money for that reason, so there is no real benefit for cheating. Lichess and chess.com additionally add rankings for bots and have a strict anticheat if you use bots for regular games.

For me it feels like this is not really possible for live CTFs. In contrast to chess you can't ban AI, as live CTFs are about breaking things by design, so they'll always try to circumvent an AI ban.