I've always used ANSI keyboards. I ended up with this ISO oddity because it was the only one I could find in blue, with a knob. (then the next day I found the USA layout exactly like I wanted...Keychron themselves have it.

Anyway the weird keys (+ and @) are there because I use them more than the squiggly tilde/ grave accent and the backslash that was next to the Enter key.