I am German and I applied for a UK visa using the online form. Please excuse my naivete, but I have not dealt with any of this before and I am just starting to see all the details that I am missing.
First, I realized that I do not know what a visa is pyhsically. Is it a card like my ID, or more like a sheet of paper, or is it a sticker and/or stamp in my passport?
Then, I realized that I have no clue how I will get hold of my visa once it is granted. Since I applied online, I have not been at any "visa application center" or the like. Will I be informed about this once the visa is granted? Will I get it in Germany or once I travel to UK for the first time? Will I have the option to receive it via mail? Will I have to give away my passport for some time, and if so, for how long?
Some more information requested in the comments
I applied for a Global Talent visa (initially Skilled Worker, as mentioned in the comments, but this changed) via the online application service of GOV.UK. I will stay there for at least three years.