Wyze has added a new PiP feature to some camera models since then, but it is a different PiP feature than that used for the OG. I use this with BCPro and FLPro sometimes. I forgot that the V3Pro supports it too, but it does. This PiP feature allows you to have the Camera live stream float over OTHER APPS, and not just when you stay on the app live stream. It’s pretty cool. Works great as a baby monitor, etc too.
I just checked mine on Android with both a phone and a tablet and I don’t see it on either my phone or my tablet. However, I am using the new Beta App v3.0.
The bright side is that this probably means that it is a server side change for the app which doesn’t require a whole new app update. So they were probably testing it out and then removed it and will bring it back again later. The one that still has it is probably due to the cache not refreshing.
I think you may be confusing PIP with Smart Focus. When Smart Focus is enabled and motion is detected, the view will appear as a 2nd zoomed in window that automatically follows the motion/subject and you can swap between normal view or zoomed in/tracking views. If this feature is what you are referring to, tap the Smart Focus icon under the live view. If it doesn’t turn green (On), go to Wyze app Home > Account > App Settings > Enable Hardware Decoder. Toggle the setting the opposite of your current setting.