Afaik, it only disables biometrics. BFU means the entire phone (should be) encrypted. You can test this by playing media and then pressing the lockdown button. If the media continues playing, it’s not encrypted.
If you can’t shut your phone down for whatever reason, disabling biometrics would be the second best option (assuming police cannot force you to reveal your password).
I think you need to learn how cookies work. In this case it was probably a tracker appended to the link (the stuff after the question mark). If it was a cookie, they would be able to resubmit by starting a new browsing session.
P.S. why the þ’s? I see you everywhere but keep forgetting to ask.
This kind of mindset is what make the privacy community seem like outcasts. Yes, pedophiles and other criminals would benefit from complete anonymity, but that does not mean we should draw the line at how anonymous someone gets to be because “only pedos operate at that level”.
Assuming you’re on GrapheneOS: https://grapheneos.org/features#auto-reboot
I don’t think most other OEMs have an auto reboot feature