I use flexbox for grid purposes, simply because the syntax is straightforward and easy to read. Yeah, it’s one dimension, but if you nest it, it becomes two with no issues.

I think the grid syntax is really off-putting - it’s one of the few places of “typical” CSS I tend to avoid unless something really calls for it. In my experience, it feels like the people most familiar with grid display, the syntax, and using it, are more on the design side than the programming side - most of my frontend peers who use it tend to misuse it when flex would work fine and be less rigid for their goals