I just completed this project for my 2 Ring floodlights .
Added an additional Z-Wave motion sensor which also has Temp and Lux sensors as well. The only impact of doing this was allowing HE to control the lights - the other stuff - The Ring's motion detection/motion zones/notifications etc still work fine.
You can also do this with a non-smart floodlight as well.. Originally added it to something like this:
(was testing in my basement)