As of 2023-06-04, all modern browsers do not honour autocomplete=off attribute that has been long existing for years.
Lots of frustration on it was spot on web developer forums where developers were trying to disable autocomplete option through multiple ugly hacks such as style display:none, double password input tags, ..etc. We, YGN Ethical Hacker Group, likes to stress that this can be achieved very easily through existing methods.
This page makes use of CSS Font Masking.
Design Credit: CSSFlow