I find it quite incredible that someone would complain because an app was only supported for a decade before needing to be upgraded. I don’t know that Microsoft do that, but Apple itself stops support on things like OS in a 5-7 year window (I.e. device updates stop after 5-6 years because devices are “no longer compatible”).
But no, of course, we should demand that developers will pledge their lives and those of their firstborns (where applicable) to the service of an app we paid for once, over 10 years ago.
For what it’s worth, I work in a completely different field, and if you ask me to resume work for free on a programme of a work I officially completely years ago and followed up with a new project that I’m still running, you’re going to have to do a lot better than calling me “lazy” if you want the work done.