Apple doesn't care about backwards compatibility at all. Mac software is OS version dependent, and the OS version is hardware dependent, and if you don't have the approved OS and hardware combo then tough luck.

Say what you will about Windows and Microsoft, but they live and breathe backwards compatibility.

https://arstechnica.com/gadgets/2022/10/windows-95-went-the-...

I agree, more on this:

https://www.joelonsoftware.com/2004/06/13/how-microsoft-lost...