Github uses Linguist for code analysis in its repositories, and resulting from that introduced a nifty feature in its .gitattributes definitions: linguist-generated. This attribute can be used to exclude specific file types from diffs, code reviews, and hide it from showing in the file listing.
I've found that to be invaluable to working with Unity3D in order to keep .meta and .prefab files from cluttering code reviews. It would be cool to have a similar feature in Gitea