Let's look at a typical "Download" page, https://www.apkmirror.com/apk/couchsurfing-inc/couchsurfing-travel-app/couchsurfing-travel-app-4-26-0-release/#downloads as we see dates are of utmost importance.
Wherever we see a version number, we see a date. In fact I'm sure you would be hard pressed to find any website that doesn't (except https://www.google.com/earth/versions/#download-pro ). So I'm saying that the Debian website should "cough up the date", yes, "even if it is not the right date", just some date, any date, and put it more clearly on the trail of what the user sees after Googling a package. I mean there are the MD5 sums, etc. down to the exact byte count, etc. but no indication of if the package was updated last year, or before the NASA moon voyages. Those apt tools are great, but let's have the website cough up some dates better too.