Legal notice if the channel operator has not requested monetization, but advertising still appears in the videos.

The Content ID system, on the other hand, is based on an agreement with partners who upload their protected content to the RU-vid database. If the phrase “contains copyrighted content” appears in the copyright notice on your channel, then that video has received a Content ID claim. In most cases, the video is just being watched or monetized and not blocked. In this case, the video will remain available and can still be shared with others on RU-vid. However, advertisements may appear.

It is important to me to say thank you to all, the subscribers
and the visitors who support the work with their comments and likes.👍❤️