I found React to be very nice for interactive HTML mockups. But if it's mostly CRUD, just server side rendering is probably the fastest road to a working product.
Can someone explain why OP is downvoted?
I'm new to react and thought it would be used in MVP's.
Can someone explain please
Most likely because developing a web app using a react frontend and an API backend adds a significant amount of work for arguably little to no benefit, especially not at MVP stage.