Title says most. If they do "condition" the electricity, is a line conditioner on top of the driver necessary, or is just the driver good enough? Thinking in terms of using a generator to power LED lights in an off grid situation.
with LEDS theirs 2 types of modulation(drivers) pulse width and constant flow, all LED lights flicker like the old flouro's, controlling that is the secret to led lighting, find out if your driver is pulse driven or constant current / constant voltage. thats vital to any custom work with your led lighting check: Pulse-width modulation - Wikipedia note the math can get real heavy good luck
If your off grid power is already DC you could design a DIY led light that just runs directly of your power source (though probably best to have some kind of current/voltage regulation or even some DC-DC drivers)
I am assembling a set HLG lights as I write this . LED boards have a continuous forward voltage, Mine are 54 DCV per board . 4 boards wired in series = 216 DCV @ 2.8 Mili amps
Most people would probably look at doing this with a CV driver and with parallel connections. High voltage DC is not without its dangers. I would make sure the connectors can handle that voltage before committing to this approach.