You can tell the IDE to use eslint and prettier:

• right click on .eslintrc.json -> Apply ESLint Code Style Styles
• right click on .prettierrc -> Apply Prettier Code Style Styles

In order to use Prettier as default formatter on ctrl + alt + l (don't forget to install plugin):

• File | Settings | Languages & Frameworks | JavaScript | Prettier -> check On code reformat

"@typescript-eslint/quotes": ["warn", "backtick"]

Neither. People are still arguing instead of doing something useful. Luckily, we have template strings which are simply awesome. Why won't use backtick as default, even for non-template strings? You may argue that template strings are slower than regular ones (which I highly doubt) – your babel will transpile it anyway.

"react/jsx-curly-brace-presence": ["warn", { "props": "always", "children": "never" }]

Template string won't work as an attr without braces. Personally, I don't see what's useful about the ability to remove braces for strings attrs only. It must be an option either for all types or none.