Google has updated the feedback forms that users use to submit feedback for both featured snippets and autocomplete.

When you view a featured snippet you feel is wrong or inappropriate, there is the usual feedback link, but the updated form has many more options to allow searchers to give more detailed feedback.  Here is what the new one looks like:

Here is the newly updated feedback form for inappropriate autosuggests, which allows you to choose the autosuggest that is on the sreen, and then send feedback specifically about it:

Google has come under fire in recent months for incorrect featured snippets as well as autocomplete suggestions that were inappropriate, such as racist or sexist suggestions.  While users could submit feedback before, these new forms are much more specific, and would also allow Google to prioritize the feedback for specific types of feedback.

Google also made changes recently to their quality rater guidelines, in part to update them to reflect things like lower ratings to the types of inaccurate sites being used to source featured snippets.