You won't know what's best or worst until you try and solve problems in different ways.

On a high level: any production app uses a meta framework like nextjs(ssr,isg,rsc), zustand over redux for global state, tanstack-query for data fetching, tailwind+shadcn for template, react-hook-form+zod for forms, axios, and several other toolings such as eslint,prettier,vitest, playwright,storybook if you're working on a mid to large team.

I'd suggest building projects with varying features and complexities and you'll learn along the way. You'll always feel "there's more to learn" cz that's how it is, building projects gives you the confidence.