Yes, I should have to read out and type my 30 character password from my password manager when sites use `autocomplete=off` and disable pasting on the confirm password field (at least for when I accidentally leave clipboard events on).
I use LastPass with over 600 passwords and have never had this issue...
well also most password managers disable the native autofill, i.e. 1password x disables native autofill in chrome/firefox
LastPass likely ignores autocomplete=off (like almost everything else). Therefore, you would never have an issue with autocomplete=off preventing autocomplete.
Well that is kind of my point: It doesn't make sense to complain this would break password managers if they don't even use autofill in the first place.
My works's SSO tries to block autocomplete. Before Chrome started ignoring it, a lot of people switched to Safari over the issue.