Normann Witzleb is an Associate Professor at the Chinese University of Hong Kong. For correspondence: <n.witzleb@cuhk.edu.hk>. Sarah Hünting is a Research Associate at the Chair of Public Law, Media and Information Law, University of Passau. For correspondence: <sarah.huenting@uni-passau.de>.This publication was supported by the 2021/22 Germany/Hong Kong Joint Research Scheme, administered and funded by the Deutscher Akademischer Austauschdienst and the Hong Kong Research Grants Council, Project Reference No. G-CUHK401/21.