Disclaimer: I have written an upvoted answer to following question.
This question was deleted by Community: https://workplace.stackexchange.com/questions/155297/can-i-be-forced-to-take-yearly-vacation-due-to-corona-virus-outbreak-germany
The question is asking about general rules for vacation enforcement by the employer. It's not a special situation the OP is facing, therefore I wouldn't categorize it as legal advice. It contained a slightly off-topic portion by asking if there is a sign for being fired, but that could have been removed easily.
Was the user deleted or what was the reason for not just closing it but immediately deleting it? Are there special rules for COVID-19 questions?