I think it was the worst one. At least from an interoperability perspective: sure, a giant floating "+" in a circle in notes app on a mobile device is alright CTA to add a new note, but on anything bigger than that (even an iPad screen) it's bad.
Apps and websites using it felt like "Work in Progress, we will style it later" except there was no later it was already styled and was just ugly.
I think it was the worst one. At least from an interoperability perspective: sure, a giant floating "+" in a circle in notes app on a mobile device is alright CTA to add a new note, but on anything bigger than that (even an iPad screen) it's bad.
Apps and websites using it felt like "Work in Progress, we will style it later" except there was no later it was already styled and was just ugly.