I would like to suggest a feature for modern SharePoint Online pages to mark certain documents as "favorites". Currently, there is an option to pin documents in SP Online to find them more quickly. However, the downside of this method is that it is view specific (at least to my knowledge).
Therefore, it might make more sense to allow each user to mark a document as a favourite. In addition, a web part could be offered, which would then display the document favorites on the homepage, for example. This would simplify the quick recall of documents.