LG G3 the European edition is getting its Lollipop update as we speak. In case yours didn’t get the update yet, you can feel free to hit that update button just to be sure. The model that’s getting the update is D855, and it is sold all over Europe.
The build is number LRX21R and it has the LG software version V20e. It is the 5.0 build and it does not have the redesigned navigational buttons, but keeps the old ones too.
The LG G3 European model is a bit different from other variants because it comes with 16 to 32 GB of storage, as opposed to most devices which sell the 32 GB variant only. The US update will be coming shortly, just after it gets approval from all carriers.