In 2016 Google Chrome started ignoring autocomplete=off though it is in W3C. The answer they posted:
The tricky part here is that somewhere along the journey of the web autocomplete=off become a default for many form fields, without any real thought being given as to whether or not that was good for users. This doesn't mean there aren't very valid cases where you don't want the browser autofilling data (e.g. on CRM systems), but by and large, we see those as the minority cases. And as a result, we started ignoring autocomplete=off for Chrome Autofill data.
Which essentially says: we know better what a user wants.
They opened another bug to post valid use cases when autocomplete=off is required
I haven't seen issues connected with autocomplete throught all my B2B application but only with input of a password type.
Autofill steps in if there's any password field on the screen even a hidden one.
To break this logic you can put each password field into it's own form if it doesn't break your own page logic.
