Reality is more something related to trust, if you want a hierarchy to reality, you can trust more your direct testimony of an event from your senses that someone's account, and it's much better when you shared reality with a third party. «Did you see that ?»
Everything's real, the only point is whether it fits in your belief system or if you trust the information enough to adjust it.
Everything else is conjecture. If I look back at photos I've taken, I can conjecture that they appear to be an accurate record of what I was seeing when I took them, and that no one has surreptitiously hacked my phone and altered them. If I look at a photo of a grandson posted by my daughter, I can reasonably conjecture that it is also a faithful facsimile of his appearance at that time and place. If I look at a video of a third person posted by my niece, there is zero assurance that it represents reality.
So the default position has to be that the colored dots are for entertainment only, and not to be taken seriously, unless there is some valid reason to believe otherwise.
Similarly, how do you know you're not a brain in a jar? etc.
GP's point, that there's a hierarchy to truth/reality, is probably more useful. All we have are observations, and we can use those observations to draw conclusions about the state of the world. We must always be aware that it's always a map, though -- we can never know the territory.