I suspect that was a proposition from some out of touch internal bank junior who had no idea how badly that would go down with the general public let alone the whole "bringing the employer into disrepute" aspect.
https://www.dbresearch.com/PROD/RPS_EN-PROD/PROD000000000051...
there are countless articles to be found about this if you just look for anything like "working from home tax deutsche bank", for example:
https://www.dw.com/en/deutsche-bank-proposal-to-levy-income-...
https://www.cnbc.com/2020/11/12/deutsche-bank-proposes-a-5pe...