There is no option to disable the LEDs:
https://kb.netgear.com/31030/What-do-the-LEDs-on-my-Orbi-mean
My Setup | ISP SparkLight | Internet Cable 1000↓/50↑ CM1200 Modem | Wifi Router Orbi RBK853 (Router Mode), Wired Backhaul and R8000 | Switches NG GS105/8, GS308v3, GS110MX and XS505M |
Additional NG HW: C7800/CAX80/CM1100/CM1200/CM2000, Orbi: CBK40, CBK752, RBK50, RBK853, RBK752, RBK953, SXK30 | NightHawk: R7000, R7800, R7960P, R8000, R8500, RAXE500, RAX50, XR450, EX7500/EX7700
