re: General security camera discussion (was "Unifi Protect security cameras")

Looking for a little advice on a new construction security system. I’m interested in PoE + NVR systems just for ease of install and not having to mess with WiFi or battery outages. I would like to incorporate floodlights with all cameras except the doorbell camera. This would be a total of 4 flood/camera combos on main home, 1 doorbell camera, 2 flood/camera combos on a detached shop, and 1 NVR hub. It seems like the Reo Duo PoE has good recommendations. Is there any reason to steer clear of this setup? Another quick question regarding the detached shop. I would like to have 2 PoE flood/camera devices and also another Cat6 hookup for a smart TV. Is there anyway to run a single cat 6 then piggyback to those devices, or will I need to run 3 separate cables (one for each device). Appreciate any advice I can get. Still very new with learning about these systems.