I think that if a site asks you to fill a form along with attaching a résumé, then it's a scam, and they're just using you to train their AI.
Today I will only apply to a job that requires me to make an account (like workday) if at least one of these criteria are met (i) I am exceptionally qualified (in my own eyes), (ii) I have a reference, (iii) I already have made an account previously. Though thankfully there are many (smaller) companies these days (at least in my current field) that don't require me to make an account.