OTT detect the launch of the executable (E.g. flightsimulator.exe) so it apply all settings at that very moment. it’s not really live as this need to happen in any case before switching to VR (E.g. like with ODT).
For the batch with OculusDebugToolsCLI, check this post I made recently to get the basic : Oculus Quest 2 settings - RTX3070 OC - #14 by CodeLoran69