Is factory resetting from recovery or settings better? (LG Q6) Device: LG Q6 M700DSK
OS: Android Oreo (8.1)
Root status: Unrooted
Q: Is factory resetting from recovery or settings better? (LG Q6)

On my device you can factory reset the device from the settings and from the recovery mode (power+vol-down and when on lg logo quickly let go of power and hold it again, it will give you an option to reset), is there a difference between the two? Is resetting from recovery better?
There is no difference - one depends on another.

When you select "Factory Reset" from Settings, it reboots your phone into recovery and wipes there. So there's really no difference as the actual process only takes part in recovery mode. You may choose whichever way for you: Navigate through Settings or use physical buttons - the latter is useful when your phone doesn't boot or the touchscreen malfunctions.