Of all of those, I've only even heard of OpenSea, and even then in the context of where those monkeys everyone hates came from.
The rest could be Pokémon or fonts for all I know without Googling.
On the other hand, I did hear about MtGox and FTX.
Well, there was also a time when "Macintosh" meant a raincoat to all but a handful of people, and another time 10 years later when "Amazon" was a forest or a river to all but a few weird nerds who were finding it cool to give out their credit card details "online" to order books, instead of just crossing the street to get them from the bookstore like every sane person did.