It does seem that more and more browser features have become stable but that has been sort of drowned out by the AI boom. Even with millions of us monkeys on these keyboards, (now monkey simulators?), I still think there are even more discoveries to be found in web dev. You can get so much functionality with even the most basic hardware.
25 years ago well over 95% of users would have been on windows, and there is no chance in hell you'll ever convince me that modern web development is as easy as Visual Basic was for whipping up UIs back in the day.
That AI is making it easier is happenstance, it makes generating UIs in anything easier.
The web is a pile of garbage fronted by horrible software in the form of terrible browsers that is under massive, unceasing attack from AI bots that will render the entirety of it unusable over time.
But unlike the year of the Linux desktop (any year now!), the promise of the Web as the app platform of the future seems to recede ever further into the distance.
That AI is making it easier is happenstance, it makes generating UIs in anything easier.
It will be shutoff. And i wont miss it.