Spreadsheet German not supported?

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Device: iPhone 12 Pro Max
OS version: iOS 16.3
App version:
Mode: Connect to Cloud / On Device
Browser version (for Web editors):

the spreadsheet is not usable because german is not supported. Language is set to German, but the date format remains in English. Everything in the document is set to German, including in “Language and Region” of course, yet the date remains in English. Also under Format it is in German.

Hello @Pdr2002
Could you please run a test? Please disable ‘Set automatically’ option and set up region manually.
Example:

Will the situation change?
If it doesn’t help, please reproduce the issue and record a videofile (also let us know your app version).