Not from Germany myself, but I'm also getting same issues since that maintenance. My traffic goes through Germany though (Level3 lines).
It affects all regions, it also affects inventory database sync. For instance I can't simply add/remove clothing pieces (say alpha layers) without them being stuck until viewer regains sync with it.
Sometimes if I TP to a different region and it actually works, then I TP to another one and it fails, on relog I end being in very first region I logged in, as if I've never teleported even once to begin with.
Sims statistics shows 0% packet loss as usual, I also did traceroutes to many SL sims and other LL resources and it doesn't show anything weird or unusual.
Having a bit of a login problems too, but usually I can actually log just fine, but it doesn't load sims around the one I'm in, like there's just that "square" and nothing around, world map shows everything just fine, though.
Also seen those marketplace errors which also started to happen after maitenance like in this thread: https://community.secondlife.com/t5/General-Second-Life-Tech/quot-Marketplace-ERROR-quot-s/td-p/3049293
Last, but not least, marketplace and pages like https://secondlife.com/my/account/contact.php do get stuck on connecting to secondlife.com a lot too, a couple of refreshes fixes it usually, had a pingplotter running all the time during test and it looks clear, no loss, no weird ping spikes when it happens too.
I did try a free VPN trial to see if it solves it and it does (traffic went through cogentco lines), no teleport/inventory issues when I'm using it, not even one for about 3 hours of testing.
P.S.
Even tried to use this testing avi, in case if my main account got messed up, but it's the same.