It sounds like you are trying to collect anonymous responses so people can tell you how they are feeling without having to feel dumb, attacked, or like something bad might happen; is this correct?

If so, there are several options. A website can do this, if you already use Microsoft 365 then that platform can do such a thing as well. At the basic level, you can create a form using Microsoft Forms. In Microsoft or on you own website you can then put up responses on some of the questions that may apply to everyone; so if someone says "We need software to allow us to do such and such" you can have a spot somewhere to post how you can do that with the current software making it known how to everyone without knowing who asked the question. 

If it didn't answer your question I hope I at least gave you something useful that oyu didn't think about and can use.

Disclaimer: We are a Microsoft Partner. We help businesses start and maintain their company as business consultants providing business and website services; and this is only our advice.