I am also German with an average social circle as I would say. Until the end of last year, I just knew of one case of Covid among all of them. Since then, a few families got it - most of them via kindergarten.
Say what you want about our Covid response but from my point of view we made it fairly well through the pandemic so far.
Omicron is prevalent here right now.
Not sure about the under-tested in general, all the public testing stations were always super busy.
We're in a situation now where our PCR test system has pretty much fallen apart.
But Belgium also overcounts deaths ( should be /2 when I checked in 2020), which means any untested death is counted as COVID. Most people don't seem to be aware of that.
https://www.dw.com/en/belgiums-coronavirus-overcounting-cont...
https://www.npr.org/sections/coronavirus-live-updates/2020/0...