Probably fun defined in the ephemeral context. As-in it was "fun" to play in the context of the short form video attention span, social media brain rotted individual. Then it was thrown away and never played again.
It's definitely not fun if you consider building an actual community around it and have a long term plan for it.
That's a weird definition of fun.
I wouldn’t call these one-shot “games” fun either, but your definition of “fun” sounds more like “work” to me.