No sé por qué babel-node no se importa sin la extensión ".js".
"type": "module" en paquete.jsimport example from "./src/example.js"; funciona bienimport example from "./src/example"; no funciona--es-module-specifier-resolution=node funciona solo cuando no uso babel-nodepaquete.js
"type": "module", "scripts": { "start": "node ./index.js --exec babel-node -e js --experimental-modules --es-module-specifier-resolution=node " }, "dependencies": { "bcrypt": "^5.0.1", "body-parser": "^1.20.0", "express": "^4.18.1", "jsonwebtoken": "^8.5.1", "mongoose": "^6.3.5", "nodemon": "^2.0.16", "npm": "^8.12.1" }, "devDependencies": { "@babel/cli": "^7.17.10", "babel-preset-env": "^1.7.0", "babel-preset-stage-0": "^6.24.1" }npm install @babel/node resolvió mi problema