> Are we reaching a point where it's easier to just build what you need rather than learning a new app/tool?

Applications and tools have always been about solving a particular problem. Some software are more general out of the box than others and so can be applied to wide range of specific tasks. Famously, spreadsheets are great for this.

I'd argue that ChatGPT is even more general than spreadsheets on enough dimensions that it can be used for a much wider range of problems, including workflows.

Your questions misses the point on why non-tech bros use apps. They are forced to do that.

Generating your own fetters will not solve any typical problems such as inability to use some old dishwasher which requires using someone else's computer which supposes to run some abandonware until it stopped to do that.