You might want to look at installing Voxel’s third party firmware for your Orbi. I use to have an Orbi system and the official netgear firmware always had issues (memory leaks requiring reboots, disconnects on IoT devices and cameras etc). Voxels firmware is way more stable. The only drawback to installing it is you can can temporarily brick your router if you’re not paying attention to the instructions (easy fix) and when I ran it the parental controls didn’t work (not a problem for me as I don’t have kids).
Yep you can. It might enter a brick state but it can be brought out using a paper clip reset trick and connecting up via Ethernet and flashing factory firmware a second time. Again it’s been a few years so maybe voxel fixed this issue.