Let me tell you the secret of the "Everything App".
It's real, it's not called X, and it's about 33 years old. It's called a Web Browser.
Despite a decade of walled gardens trying hard to ruin it, you can still do pretty much any task you need on the web.
You can even make websites into apps with Progressive Web Apps (two clicks on WordPress).
The everything app is old, and under siege daily. But it works, it's resilient, and it's magical.