I've never heard of NextCloud Cookbook before. Looking at its Github page, it says it's "mostly for testers" and is unstable, so no point in even considering it for regular use at this point in time. Besides, I'm assuming you'd need to have your own instance of Nextcloud up and running to use it; I don't use Nextcloud.

As for Grocy and other more mature alternatives (Tandoori also comes to mind), I think I initially went with Mealie because it had the most pleasant UI out of all of them. I liked it and found that it satisfied all of my requirements, so I just kept using it.