Why is libjpeg.so.8 missing from Debian?

Debian 10, but same issue applies to Debian 11. Trying to run a certain binary (gaming), I get complaints about libjpeg.so.8 missing. apt-file search libjpeg.so.8 gives no results. However I can see libjpeg62-turbo in the repos. Looks like libjpeg.so.8 isn't available, even in non-free, even in backports? Ubuntu seems to have it though! What's the story here? Why doesn't Debian have libjpeg 8? And more crucially, how can I get it? If I'm reading this correctly: https://en.wikipedia.org/wiki/Libjpeg Looks like version 8 was released 12 years ago? Shouldn't Debian include both versions of the libs, so you can use either if a program needs either? What am I missing here?