this depends on what you know ... grid is way more mighty and you have to take know what to do if you want to behave like flexbox.

> grid is way more mighty

I don't know what you mean by `mighty'

> you have to take know what to do if you want to behave like flexbox.

yes, as mentioned, that is if you want flexing. Most people don't want flexing - most layouts are static, grid-based and only change based upon media queries, where CSS grid is very similar.