Are the aforementioned situations – such as laughing at the statement "Imagine him going to perform jihad," claiming a bug harassed the Prophet, laughing at the recitation of a Quranic verse, saying "the corrupt 'mutawwa'" or "the 'mutawwi'een' are terrifying," and laughing at the hypothetical scenario of the Haia (religious police) apprehending a couple at sea – considered mockery of religion or merely jesting and [evil] whispers?

It appears the questioner is suffering from obsessive thoughts (waswasah) regarding the issue of mockery, and they should discard these thoughts because waswasah is a severe illness. Indulging in it leads to confusion, doubt, and distress. Just as one must beware of disbelief (kufr), one should also not be obsessive, accusing oneself or others of disbelief.

The mentioned incidents do not explicitly show mockery of religion.

Mockery of religion stems from ridicule and contempt. The questioner's fear, which has reached the level of waswasah, decisively indicates that they harbor no contempt for religion. Therefore, their condition should be treated by completely disregarding the obsessive thoughts.