The worst I've seen so far are posters with mindless and vulgar motivation propaganda such as "Bullshit-free Zone" and "Get Shit Done" [1].
These seem to be popular with a customer of mine who went all-in on SCRUM last year (believe me, you haven't seen anything yet if you haven't worked in a German team throwing around everyday or pseudo English terms in an attempt to appear cool).
It probably is, but there are pseudo-English idioms in use that just hurt. For example, "public viewing" is used in German for featuring sports events on large screens in the public, "handy" is used for mobiles, etc. See https://german.stackexchange.com/questions/40586/why-do-germ... for a discussion about this phenomenon.
[1]: https://www.startupvitamins.com/