Tbh being open mostly works out for me.
There have been some bad situations and there are definitely persons where I am afraid to open up too much and therefore don't do it.
But I like to give people an "Vertrauensvorschuss" (Not sure how to say this in English). Basically I am giving them my trust until they prove not worth it it.
Of course this depends on whether you can afford this or not.
But overall I feel like this improved my relationship with people.
As far as I am aware Naomi Wu was one of the first people to file an FTC complaint. She has a video about the mask on YouTube.
Sadly she is being silenced by the Chinese government. Probably because she reported privacy problems with smartphone keyboards. Privacy that can be very important. For example if you are LGBT and your partner is of the Uyghur minority.