Not going to happen. I don't see how employers are just going to somehow reach a conclusion that they will pay people livable salaries to work less and only when they want. Inventions like dishwashers and washing machines simply allowed people to wash more things more often. As a result, there's not much of a gain in overall time savings. The more realistic scenario is that employers will expect even greater productivity from fewer workers.

At the rate AI is improving now, I really don't understand how there can still be so many developers that believe their job is safe from AI.

Fiverr freelancers from around the world will have access to many of the very same AI tools. Things like ChatGPT means everyone speaks good English now.

If people don't want to use Fiverr, there's still going to be YouTube. A short YouTube video will be able to show anyone that's remotely decent with computers how to create a company app using AI in minutes.

Will there be a need for more complex apps? Of course, but it won't take 20+ developers to make it. A few experienced developers is all that will be necessary. AI will make every developer capable of doing more. Unless there are a bunch of new projects, a lot of developers might have a bit too much free time and businesses might factor that into developer salaries.

In my opinion, there are too many apps already. Every company feels that they need to have an app. Apps drain battery, take up storage, and are usually bad for privacy.