Year-Month-Day is also my go-to for naming files (at least in systems that don’t have file versioning) because it allows Name sort to list things chronologically. Just have every version of the same file have the same name, then append Year-Month-Day to the end.
I work with a lot of bespoke systems that use proprietary files, so file versioning with something like Google Drive or OneDrive goes right out the window. But Year-Month-Day makes it easy to maintain some semblance of organization.