News from today; german prosecutor is investigating against the guys who projected this on the Teslafactory for showing illegal Nazi symbolics. So: for german prosecutors it definitely was a Nazi salute.

It’s Schleswig, not Schelswig, thank you. Op ewig ungedeelt!

Thank you all for your insightful input! I really like and appreciate the helpful community around Linux.

Thanks for your answer! Ublock Origin is a given in all my browsers. Web is not usable any more without.