React+Metronic for UI, redux-form for forms and validations

We use React and will have a UI library like Material Design or something. I usually use Ant Design

I still use jQuery for such. I would only avoid using jQuery if the project stack is related with JavaScript only.

Using any content management system like Joomla, WordPress, etc. I don't dare to say jQuery is bad. Because, all we need to do DOM manipulation.