Mozilla is unhappy because the use of browser engines other than WebKit will be restricted to the EU, forcing them to develop two different apps.
For an independent browser like Firefox, managing two browsers is not easy, so it can be forgiven that this could be seen as almost harassment.
Also, the fact that the use of browser engines other than WebKit is limited to iOS means that the use of WebKit is still forced on iPadOS, which also increases the effort for Mozilla.
I… Don’t like Apple at all. I’m engaging in a thing called a thought experiment, which is required to rationally assess why somebody might not want to throw away things they have purchased and devote both more time and more money to something that doesn’t work as well as it.
So I don’t know what all the cool killer Mac apps. Replace Photoshop with the name of a bunch of cool killer Mac apps, and repeat the question.
Well if you’re playing devil’s advocate then I guess ok? But that’s a tough job on this one, as there are very little pros to sticking with apple.