I found your paper and the transmedia analysis fascinating.

Thank you for a great question! I think my answer comes in two parts: First, in the very beginning of the lockdown process each and every chain reacted in an improvised way. The parameter of corporate resources was shut-down, or deactivated, so to speak. For example, we have a hand drawn mask up sign from a major drugstore chain in the dataset. Come June, corporate differences came to the fore again. For example, shop-specific regulatory signage at cafes and ice parlors was replaced by posters produced and disseminated by the federal association for gastronomic enterprises, which made available these posters to its members. So yes, financial resources play a role in the standardisation process in the course of time, but not in the very beginning.

This is interesting. So there seem to be national differences in these standardisation rates. But other processes seem similar across countries. These chronotopic processes that you are discussing, with left-intact signs, they were quite similar in Hamburg, too.