Im using directus (https://directus.io/) for my personal website with a vacation blog and some posts…
So far it works pretty well and my gf is also able to use it on her own, so you could say its non-tech user approved haha
I also did some websites using hugo and DecapCMS from netlify. That also worked but the ui isnt to fancy and it gets a bit confusing on complex pages. But it can directly push to a git repo so you have version control out of the box
Just to mention it, there is a macOS app called Dato which can do the same (fullscreen notifications) but on mac. https://sindresorhus.com/dato