All this talk about jellyfish reminds me of this incident in Russia

Don’t know if this helps or not but since people are researching jellyfish ufos and bringing up old reports, I thought about one of my favourites years ago in Russia, pic attached is a photograph of the object in question.

“Petrozavodsk object”

This link explains it all better.

https://www.themoscowtimes.com/all/52335?amp=1