In the past I've had to have GA for this procedure (×3!) because of flailing arms and panic attacks, but last time a few weeks ago was determined not to.
It helped I was at a different hospital where I had a much more sympathetic team than previously who spent a lot of time talking to me about the procedure (they had a special nurse whose job this was), and let me have a mouth guard to try at my leisure in the days beforehand so I could get used to it.
In the room they dimmed the lights and let me take my time through each stage of prep from putting in the oxygen nasal tube, to spraying the throat spray. I put in my own mouth guard and they let me fiddle with it a bit.
I had a guided meditation I listened to on my phone, and was tanked up with both midazolam and fentanyl.
It was a completely different experience than what I'd gone through at two other hospitals in my NHS Trust, (which traumatised me tbh) and I think if I hadn't happened to have gone to this hospital it wouldn't have happened like it did.
It was a complete fluke ending up there, but I've been told if I need an endoscopy in the future I can choose this hospital, and can also request the same endoscopist.
How you would go about making it a better experience in your area I'm not sure. This team appreciated my panic attacks and were SO amazing in helping me to feel better.
Personally, I would try and avoid GA if possible because apart from anything else it's massive pain in the backside and you can feel awful afterwards. However, there's no shame in it!