Procreate is great, and reason alone to buy an iPad if you are a digital artist. But Apple's Flow and Notes will probably grow in capability over time. Apple is also building in AI image generation, which arguably replaces not just Procreate but also the artists who use it. ;-(

Apple's "pro" apps - Final Cut Pro and Logic Pro - are fairly successful in their categories. Personally I'm a big fan of GarageBand, especially on iOS. MainStage is also kind of cool. I wish Aperture hadn't been killed before its time.

And I still find that I use Preview, Safari, Mail, Terminal are on a day-to-day basis even though I have some good alternatives in each category. Keynote is my go-to presentation program even though I also have PowerPoint.