Optional chaining error in old browser (Chrome <80)

I started to get reports about users that can’t run the app (React) on the old browser. I did some debugging and turned out it’s all because of optional chaining used in the date-fns package.
The error in the console is:

vendor.js?id=90110bbd2ec643f1abf946793e283132:2 Uncaught SyntaxError:
Unexpected token ‘.’

And when I open vendor.js compiled file I can see the issue is about:

n?.roundingMethod

I can see that below Chrome 80 optional chaining is not supported: https://caniuse.com/mdn-javascript_operators_optional_chaining.

I tried supporting it via babel.config.js file by adding @babel/plugin-transform-optional-chaining plugin:

module.exports = {
  presets: [
    [
      '@babel/preset-env',
      {
        corejs: 3.8,
        modules: false,
        targets: '> 0.5%, last 2 versions',
        useBuiltIns: 'entry',
      },
    ],
    '@babel/preset-react',
    '@babel/preset-typescript',
  ],
  plugins: [
    'styled-components',
    '@babel/plugin-transform-class-properties',
    '@babel/plugin-syntax-dynamic-import',
    '@babel/plugin-transform-optional-chaining',
  ],
  env: {
    test: {
      plugins: [
        '@babel/plugin-transform-runtime',
        '@babel/plugin-transform-modules-commonjs',
        '@babel/plugin-transform-optional-chaining',
        'dynamic-import-node',
      ],
    },
  },
};

Then I also tried adding Chrome 79 explicitly in the same file:

targets: '> 0.5%, last 2 versions, Chrome 79'

That also did not help so finally I added it to the webpack config file

use: [
  {
    loader: 'babel-loader',
    options: {
      plugins: ['@babel/plugin-transform-optional-chaining'],
      presets: ['@babel/preset-env'],
    },
  },
],

None of the above helped. Am I doing something wrong or missing something obvious? Or maybe since that’s an error from the external package I should handle it separately?