FB screwed me. Forced me to sign up for 2FA by logging me out on all devices/browsers. So the same day I set up 2FA, my phone died. Now I cannot access my account anywhere because FB did not build any alternative way to get in if you're using 2FA. The one contact us link in the series of pages and prompts I have gone through, has an error message that says they are working to fix the broken contact method, but my guess is it's intentional so I in FB purgatory waiting.