I have flown in many countries (Norway, Finland, Switzerland) ,at 2,000 + metres altitude.
But never encountered a problem.
If you look in the Member Only section, you will find many useful Documents that I have put together to make your Flying Experience better.
And by the way !, Welcome to GADC !, pull up a chair, pour some wine and browse.
You will find many posts that may be of relevance to your problems.
https://greyarro.ws/t/gadc-drone-information-pack/3696/5
This post may answer your questions on AGL as far as the “Drone Code” states.