Im in Germany, but Germany isn't really one country, it's a group of states and each has different rules and laws (for everything, not just covid) in the same way Scotland and northern Ireland have a lot of independent laws etc.
In Bavaria, where I am, incidences have been higher than the national average due to our proximity and close links to Italy. Lots of people have family in northern Italy and go there a lot. Our minister-president is pretty cautious.
There are various rules,but if you're mostly curious about the English "rule of 6" it's 10 people here.
Relatives can meet in their homes without restriction, but that's immediate, close relatives in a "direct line" not second cousins twice removed.
Children from year 5 up wear masks all the time at school atm, due for review on Friday.
You almost never see anyone without a mask in a shop.
We're tested regularly at random at work (healthcare) and there doesn't appear to be any shortage of PPE, which we wear if anyone has a second degree contact with a positive case (quarantine for 1st degree contact, ordinary surgical masks all shift if no known contact).