babel-plugin-webpack-dynamic-require.js

const t = require('@babel/types')

// generates "(typeof __webpack_require__ === "function" ? __non_webpack_require__ : require)"
const dynamicRequireExpr = () => t.parenthesizedExpression(t.conditionalExpression(
  t.binaryExpression(
    '===',
    // we should look at typeof __non_webpack_require__ but '__webpack_require__' is known at build time and optimized right away
    t.unaryExpression('typeof', t.identifier('__webpack_require__'), false), 
    t.stringLiteral('function')
  ),
  t.identifier('__non_webpack_require__'),
  t.identifier('require'),
))

module.exports = function () {
  return {
    visitor: {
      Identifier: function (path) {
        if (path.node.name === 'require') {
          if (path.parent?.type === 'CallExpression') {
            // replace require(x) when is is not known
            if (path.parent.arguments[0]?.type === 'StringLiteral') { return }
            path.replaceWith(dynamicRequireExpr())
          }
  
          // e.g. when using require.resolve or require.cache
          if (path.parent?.type === 'MemberExpression' && path.parent.object === path.node) {
            path.replaceWith(dynamicRequireExpr())
          }
        }
      }
    }
  }
}