'Hardware' keysfobs brother. but no, you can't "own" your 2FA. Cause it's a web2.0 server based concept.
What you want is to generate your own private key and then call it a day :-)
Discussion
Be insecure, that’s your choice.
You can own your other factors, you’re just wrong and embracing it.
MFA you can own:
- An email domain and server
- A certificate
- open source Fido2 Security key
- Geolocation via IP address or GPS or network node
- Time-Based OTP
The only one of those that technically relies on someone else is your DNS provider for your mail domain or ISP for geolocation.
One man lives an in a house surrounded by good neighbours.
Another man lives in a house with five locks and a barking dog alarm.
Which of the two men would you call insecure?