I ran into facial recognition at the airport recently an opted out, but what are the likely and worst case consequences of allowing yourself to be profiled?

I’ve heard of false arrests because of it, but it seems like those issues while be resolved with time.

Could not agree more.

Also https://tresorit.com/

Any chance your firewall is dropping the packets for some reason?

I have a Pixel 3a that has CalyxOS on it and it still gets updates. I see no need to replace it until that changes.