In my experience Euro guys just take the same stuff. I am not counting the UK as that is just like the US and most just take high doses of everything. Perhaps things were very different 20 years ago but in the last decade from my experience most take the same sort of cycles. Yes certain people do experiments with high deca, high eq, high tren and mod/low or even no test but it's not done on a geographical basis. I know some French, Swiss and Polish bodybuilders for example and they all take the same sort of things. I saw Ruhl was mentioned and I know someone who was told by a top source (come from Ruhl himself) that he took massive doses of test. Many don't like high test but plenty still use it at around 500-1000mg even if they don't rate it and use high doses of other aids. Most Euro guys I have asked take very high doses of test when growing and even in prep.
The ppl who taught me this are all 55+ now elvia
And believe me back then noone was pushing 1 g test