https://bleacherreport.com/articles/2854719-antonio-browns-agent-drew-rosenhaus-says-wr-has-interest-from-a-few-teams

Since he has not been charged with anything, and he is not on the exempt
list, he is simply a free agent that can be signed. Teams want to know how close the investigation is to being completed, and looking for signs if he is going to be exempt or not. That's all that matters. If he is not placed on this list, then there will be quite a few teams that will still go after him.