My bad wrote too quick I meant RSS.

And if the question remain RSS is a protocol that you may use With an appropriate software to follow any content.
For youtube channel it is a little tricky but doable

Bjorn channel link :
https://www.youtube.com/feeds/videos.xml?channel_id=UC95m7aBYo7wgNCoHb1ojQYw

Only the channel id change.
For another channel you need to look into page code to find.