Hi
@thite_tejas kindly make use of the information below:
How to follow a SharePoint Site
If you are the person who created the site – it automatically makes you follow it – so no need to do anything extra
If you were not the person who created a site, but want to follow it, just click the Follow button in the upper-right-hand corner of the site, just under your photo
How to follow a document
You have to be using “Classical Experience” of a document library to follow documents.
Click the ellipsis (…) next to the document and select Follow.
