For me any kind of motivational posters on the wall are an immediate red flag. Usually it means that things aren't going well and management can't come up with anything better than hanging up posters. Well-run companies show their values by the way they work. They don't need posters.
I know these useless surveys will never have any effect, and you never hear about any results or changes that have happened because of the surveys.
There are only checkboxes for "mildly agree", "agree", etc.
But there is usually a tiny "other comments" box. So I usually write long diatribes about all the company's failings in that tiny "other comments" box.
At least I'm getting paid while filling them out, but they must be wondering who the disgruntled truth-sayer is, since I'm sure not many in the company actually bother to do the surveys.
The only reason I know not many actually bother to do the surveys is because they do release stats on that, and encourage people to do them - I imagine it's some kind of Executive KPI for worker engagement or some such bullshit.