It doesn't, but the fu.gg url should tip of the recipient that he should be careful. Then proper precautions can be taken. Either wait to click until no one is

It doesn't, but the fu.gg url should tip of the recipient that he should be careful. Then proper precautions can be taken. Either wait to click until no one is around, or add a ? mark to use the peek version. The sender/poster could also send the url with "?" added to let the recipient peek slowly.