For you, yes. However if your account activity is open for others to view, any posts you made and changed your identity to Anonymous, won't show up for others in your My Questions or My Answers list.
Yes, it appears in your YA activity profile if you use the anonymous option on a question or answer. If your YA activity profile is public, it may not show up for other people.. I rarely use the anonymous feature on my answers, but since I can't delete my answers on my cellphone, I have used the anonymous feature when I misposted an answer to a different question. I do not have a smart cellphone. I can't move other people's questions. Most of the time that does not bother me.
If someone goes Anon they can see it but of course others can't. If the Anon leaves a comment in the comment box they will reveal who they are. I'm not sure if this is what YOU MEAN or if it answers your question. I have given you a best answer.