Web Dev vs AI vs mobile

So I started off in web development ages ago, and it has always frustrated me (open source frameworks being broken, debugging dependency from hell etc.) vs. mobile (which is a lot more straight forward and vertical rather than horizontal, and while slower with some companies being closed source like Apple, easier to deploy and not have to spend as much time debugging). AI is its own debugging hell since a lot of things were NOT working 10 years ago, but a lot has changed now. For the web devs/software engineers focused on this part of the stack, why do you still do it? I find that while open source web development is supposedly fast, it's so broken, and I'm finding more native development easier. With AI, it's like everything has gone rampant on crack though, so depending on where you are in the stack, it is all pretty relative.

Thoughts and advice on where to focus on most?

I've been through a lot of different parts of the stack and personally am so done with open source web development and it's not how I make my money mainly (it's more for branding purposes which is more than a fancy Jekyll or GH pages site).