Yes, because .NET was so old and mature that it's not like you suddenly received updates from all around that your computer couldn't run. By the time .NET 5 was

Yes, because .NET was so old and mature that it's not like you suddenly received updates from all around that your computer couldn't run. By the time .NET 5 was popular enough everyone could have the runtime. And if not, your software were advanced enough and your devs competent enough in the old ways that you could enact change for years. I suffer from that at work (I have 200 users on .NET and dozens of servers needing some python): we dont have the runtime for .NET 5 installed on windows yet, and we dont have python 3 on many older servers. There is one part where we suffer immensely, and another where we barely care: I let you guess which one.