For those of you using the work arounds mentioned above with your Tuya/SmartLife integrations the main problem was that it was a 1 way integration. ST had no problem controlling the Tuya/SmartLife devices. But if you operated the physical switch or control the device used the Tuya/SmartLife App the SmartThings App was not updated.
Now there is a workaround for that problem. Earlier today @Automated_House posted that Google integrations have been expanded so that a fan, light, plug or switch can trigger Google routines.
Now you can write 2 Google routines for each Tuya/SmartLife device to keep SmartThings in sync with Tuya/SmartLife:
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If the Tuya switch turns on then turn on the virtual ST switch.
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If the Tuya switch turns off then turn off the virtual ST switch.