If you want to install software on you MacOS machine, the same thing applies. It must come from a verified developer with an apple account, otherwise you get a warning and must jump through hoops to override. As of macos15.1 this is considerably more difficult to override.
If you want to install iOS apps, the apps have to be signed by a verified developer. Theres no exceptions.
I just dont see a future where being able to create and publish an app anonymously is going to be supported.
Becoming a verified developer is a PITA, and can take a while or be impossible (i.e. getting a DUNS number if you're in a sanctioned country might be not at all possible) but at the same time, eliminating the ability of our devices from running any old code it downloads and runs is a huge safety win.