I will never upload a picture of my passport or id online, ever.
I only recently started IDing myself online via eID (german) if available, before that it was usually that I went to the post office and get verified there
afaik it comes directly from your ID's card chip, there is an App inbetween that temporarily stores that data so it can be submitted to the service you are registering to
I just recently used my ID to register for a lottery website using the AusweissApp the first setup was a bit annoying, but once you are registered its actually easy to use and apparently you don't even need a phone you can use a card reader on your PC as well
When I feel like I have a virus I usually put on my hoody which I only wear when I feel ill and a scarf and before going to bed I drink a lot of herb or ginger tea (like two cans)
this is will heat up your body and you get some night sweats, this usually helps reducing the sick time.
I can't say if it actually helps, but its become a ritual for that occasion