Serious Discussion Differences between W10 and 11 that preclude software from being supported?

I don't think there are differences between Windows 10 and 11 from software supporting perspective, can you give example for a software that work on one and not the other?
 
I don't think there are differences between Windows 10 and 11 from software supporting perspective, can you give example for a software that work on one and not the other?
Basically the recent news of software X dropping support for 7,8, 8.1, 10

I thought 10 was like 11