https://bugs.winehq.org/show_bug.cgi?id=48264
--- Comment #22 from Heinz Repp heinz.repp@arcor.de --- and for all watching this bug: the workaround for the time being is to replace 'testing' by 'bullseye' in /etc/apt/sources.list.d/winehq.list, with this the updater pulled the 5.5 packages (over 5.01-rc2, that was the last version when the testing repository still worked).