Error resolving dependency eslint after ejecting

[Ploppz]

Running react-scripts eject, the last part of its output:

Running npm install...
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: [email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/eslint
npm ERR!   dev eslint@"^6.8.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer eslint@"^8.0.0" from [email protected]
npm ERR! node_modules/eslint-config-react-app
npm ERR!   eslint-config-react-app@"^7.0.0" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR! See /home/ploppz/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/ploppz/.npm/_logs/2022-01-21T13_29_16_157Z-debug-0.log
Ejected successfully!

Staged ejected files for commit.

And when I subsequently try npm install, I get the same error

Relevant part of package.json:

  "peerDependencies": {
    "react": "^16.14.0"
  },
  "devDependencies": {
    "@babel/preset-react": "^7.16.7",
    "babel-eslint": "^10.0.3",
    "cross-env": "^7.0.2",
    "eslint": "^6.8.0",
    "eslint-config-prettier": "^6.7.0",
    "eslint-config-standard": "^14.1.0",
    "eslint-config-standard-react": "^9.2.0",
    "eslint-plugin-import": "^2.18.2",
    "eslint-plugin-node": "^11.0.0",
    "eslint-plugin-prettier": "^3.1.1",
    "eslint-plugin-promise": "^4.2.1",
    "eslint-plugin-react": "^7.17.0",
    "eslint-plugin-standard": "^4.0.1",
    "gh-pages": "^2.2.0",
    "microbundle-crl": "^0.13.10",
    "npm-run-all": "^4.1.5",
    "prettier": "^2.0.4",
    "react": "^16.14.0",
    "react-dom": "^16.14.0",
    "react-scripts": "5.0.0"
  },
  "files": [
    "dist"
  ],
  "dependencies": {
    "@material-ui/core": "^4.11.2",
    "react-router-dom": "^5.2.0"
  },

I hope it's not me being a newbie but I have a hard time understanding what I have done wrong here.