You can spin it any way you want, but I'm not going to continue spending $2-3k on Apple hardware when they are clearly trying to get MacOS as close to a walled garden as possible. And who is to say they won't completely lock it down? They are already making developers pay for it which seems like a bad faith practice.
you need a paid developer account or an enterprise account. $100 a year is not a big deal. It seems fair, since apple has to provide the notarization service on its servers.
And, again, you can just not sign your apps, same as before, instead. But if you sign your app, notarization is a way for users to know that you haven’t done anything malicious.