npm run wdio
of ES modules is not supported.
require() of /Users/testuser/git/component-testing-examples/react-typescript-vite/wdio.conf.ts from /Users/testuser/git/component-testing-examples/react-typescript-vite/node_modules/@wdio/cli/node_modules/@wdio/config/build/lib/FileSystemPathService.js is an ES module file as it is a .ts file whose nearest parent package.json contains "type": "module" which defines all .ts files in that package scope as ES modules.