Right-click the file on your computer, select Properties (Windows) or Get Info (Mac), and look at the "Comments" or "Origin" tags; sometimes the URL is saved there.
(A child, a famous actor, a cartoon, or a pet?) 2022-10-17_2642391668.mp4
If a specific person is speaking, type the exact dialogue into YouTube or TikTok search. Right-click the file on your computer, select Properties
