Why the HTML number input is the worst

Whoa 😳
I didn't know about the +5+2===''

I am facing this issue in current project☹️

it's so bizarre that in HTML form elements are using the operating system user interface which causes all sorts of weird look and feel issues, on top of why not just create a custom ui which can be completely styled with css and also completely handled with validation etc, etc. I don't really understand why they did that tbh. Maybe a legacy issue they never had a chance to fix. But I think they could do it today and people would be happy with it