No, ads and toilets are separate in Berlin since 2019 [1]. Wall won the contract for the new Toilettenvertrag [2] by the city. The city says now what and where to build. Before that, toilets were only built where it was profitable for a billboard. Now the city can make the toilets even free [3] and the toilets are ad-free.

[1] https://taz.de/Toilettenvertrag-sorgt-fuer-Wirbel/!5431891/ [2] https://www.berlin.de/rbmskzl/aktuelles/pressemitteilungen/2... [3] https://www.rbb24.de/panorama/beitrag/2024/07/107-oeffentlic...