This discussion has been going on for years now, and we still don’t have a button. 
My use case: When my phone is on the charger at night, I want to be able to turn out the bedroom light. The way I currently do it is to turn off the light and stumble across the room in the dark. Not ideal. A Wyze pushbutton by my bed, which triggers a rule to turn off all the lights, would be an ideal solution.
Other reasons to have a Wyze Button:
Activating a simple switch is a single motion that you can do as you walk past it – a light switch, for instance. Taking your phone out of your pocket, unlocking it by whatever means, switching to the Wyze app, finding the proper entry (there’s only so much you can fit on one screen), and finally tapping it, all the while having to direct your gaze and concentration to your phone, is a lot more complicated. Wyze is great at simplicity; we shouldn’t have to take the long way around to do a button-pressing job.
Not everyone in a family has a smartphone. For instance, a child probably doesn’t. And some family members are just tech-resistant; even if they have a smartphone and they can do something via the Wyze app, they won’t. (particularly elderly people) This really impedes adoption of more smart products because, for whatever reason, they’re inaccessible to people who need to be able to use them.
Even we geeks don’t have our phones at hand all the time; sometimes you just put your phone on a charger in another room and still want to, say, turn your Wyze Bulb on, or turn off the thing that’s controlled by a Wyze Plug that’s in an inconvenient spot.
This doesn’t have to be a complex device. A button that can produce a single status – “Button 1 pressed” – would be enormously useful. Allowing for two – “Button 1 pressed” and “Button 1 long pressed” would be even better (great for doing “on” and “off”) but a single option would be good enough.
This is something people did by hacking the old, no longer supported, sensors. It wouldn’t be hard to manufacture. And it would be a huge advantage, especially for people who don’t want to move into the IFTTT/Amazon/Google ecosystem and are content with their Wyze stuff. (I’m one of those; I don’t really want to set up IFTTT just to be able to turn my bedroom light off, but it’s beginning to look like I will have to)
Added: For my use case, a Wyze light switch isn’t an option. This house was built in 1950; I can’t use them.