I've camped out in a thunderstorm in the middle of nowhere. Where are you going to go? You might as well stay warm and dry in the tent and wait it out.

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Bruce Clarke - 2020 Yamaha XV250

That's my point. Most advice says return back to your car or enter a building, hardly an option in the middle of the Atacama. I suppose I'm looking for information on the best place to put your tent in event of an electrical storm and probability of risk of being hit, ie is it better to put your waterproofs on and get out of your tent or not, etc.

I've had a lightning strike hit somewhere very very close whilst camping in a Canvas metal framed safari Tent. No adverse effects to us or the tent, and no identifiable strike point nearby
On open ground in Shaba Kenya, a very sandy area, the only identifiable difference being there was what appeared to be a petrified area of sand that was effectively solid rock.

As there was no burn marks I assume it did not actually strike the tent. But was an unfathomably frightening experience. It was in open ground and the Tent was the highest point around amongst scrub bushes.
This was in the very lowest point of a river valley on a sealed road - Kenya

Separately I had a lightning strike the chain between two vehicles whilst I was being towed. and on yet another occasion I had a lightning strike hit so close to a moving vehicle we were bounced sideways off the road.
Zimbabwe near a massive granite outcrop.

As I figure it you are completely fine in a steel frame shell tent provided you sleep on soft ground - where you can put in a tent peg. Stay away from substantially different rock strata and taller structures.

For Graphite / Fiberglass tent poles, I guess just hope that the Lightening hits the bike and not you because it provides a far better earth through the side stand.

Oh and isolate yourself from any metal things in your pockets, small change keys etc.