So after typing out my last comment and reading this thread ( Wyze Switch - Smart Control - no bulbs - #8 by Seapup ) I believe I have figured it out. Firstly, it looks to me that normal Automations simply do not work for Switches, despite being able to set up one with no indication it won’t work. The Switch seems to ONLY be able to control devices set up through its actual settings page, either through the Single Press or Additional Controls options. The “Single Press” page now only shows Wyze light products (like Bulbs or Light Strips) where this was not always the case since I originally obviously had a Wyze Plug set for a Single Press controlled device. In the Additional Controls you CAN set up control for any other Wyze device (similar to normal Automations), but only for double / triple press or press-and-hold actions on the Switch. I confirmed this by setting up double press to turn on the Plug and press-and-hold to turn it off, which works as expected. This technically works but… is annoying since it needs two different actions to toggle a thing that should just be able to (and was until I removed it) be toggled.
I guess I can live with it, but it’s frustrating for sure. I wish the plug (which really is a device that is only toggled, like a bulb and unlike a robot vacuum) still showed up in the list of Single Press devices, OR normal Automations worked for the Switch, which would be able to accomplish the same thing.