Every few months I have a look at usage of the Tribblix package repository. It basically mirrors what you would expect - usage is predominantly the last couple of releases, and older versions drop off over time.
Except the old m20 release from 2017. Yes, the last working 32-bit version that hasn't had any meaningful updates for about 5 years. It's not a huge amount of traffic, but it's still out there, and still being used by the looks of it, refusing to go away.