> Is it only certain countries? Every country can choose independently, and for each border. From a cursory search, it appears e.g. Poland currently only check

> Is it only certain countries? Every country can choose independently, and for each border. From a cursory search, it appears e.g. Poland currently only checks the borders with Germany and Lithuania. You'd have missed any checks on your specific trio, if this list was true at the time: https://home-affairs.ec.europa.eu/policies/schengen/schengen-area/temporary-reintroduction-border-control_en https://home-affairs.ec.europa.eu/policies/schengen/schengen...