Considering the fact that I grew up in extreme poverty - yes, yes I know ALL about them. Unlike random muricans who's only struggle is inability to buy a new iPhone each year.
Well, the poor tend to be less educated and only care about immediate needs. So yeah, if you have money, you're probably more of an expert than a person without money.
Again - no browsers support jxl. Firefox "support" is only basic rendering of a few basic features. It's not just browsers, there is literally no software which fully supports jxl. And won't be for a long time.
The only insane shit here comes from the gasket between your chair and your keyboard.