Outdoor coverage with Orbi RBS760

Until about 2015, WiFi Extenders were routinely used to extend WiFi coverage over a wider area.  The main drawback to extenders was that WiFi devices did not roam seamlessly between units. Users would find that performance suffered as a mobile device stayed connected to a WiFi access point that was farther away than a nearby unit.  People had to realize, "oh, crap" I need to restart the WiFi on my tablet (phone, laptop, etc.)  Mesh systems were created by Google, Netgear, TP-Link, etc. to address this problem.  The result: seamless roaming.

So, if the goal is to provide WiFi to devices which remain in fixed locations, WiFi extenders (from any vendor) are fine.

One potential solution is to locate indoor satellites next to outside walls (or even in windows which do not have metallic film) so that half of their signal "goes outside". With four existing satellites, there may be significant outdoor coverage already (depending on the construction of exterior walls).  The problems with locating indoor satellites outside include (a) getting electrical power to them, (b) sheltering them from weather and extreme temperatures, and (c) getting the WiFi connection to them.  Outdoor rated WiFi extenders address these issues mostly by using Power over Ethernet (PoE) to provide both the power and signal.  Low voltage Ethernet cable is relatively easy to pass through exterior walls.

No one knows why Netgear did not produce a WiFi6 version of the RBS50Y outdoor rated satellite.  (Perhaps they didn't sell enough to justify the cost?)  There is no obvious  benefit from purchasing an outdoor rated WiFi extender from Netgear.