I kind of like the idea of this being a reflash to install apps, if that's how it works it makes it more intentional.

Though you can probably just install Aurora Store or F-Droid and install from there. Some apps don't work (you'll notice they didn't show Uber in the examples) and recently I've been having issues with Aurora and suspect its days are numbered so I'd be concerned about the future of that before buying something like this.