Re: x86 Software
There was no real reason to remove support for 32-bit software either.
Sure, that's why even Microsoft has now started to drop 32 bit code. Given just how long Apple has been warning about the switch to 64bit code and how long they kept the wedgeware going that made it possible to run anyway, I think Apple's in the clear here.
The only complaint I have about Catalina is that it's too much Microsoft Vista in its "the mouse moved, allow yes/no" locking down of the system. It gets in the way.