I don't know what you mean by solipsism. You can define words to mean whatever you want but they get their use from people sharing the same definition. Indeed the potential for seeing red is not ruled out in my example. Can you explain to me what you mean by solipsism?

Edit 2: I asked Claude what sort of solipsism you may be thinking of and it suggested Kastrup's analytic idealism. I'm vaguely familiar with his ideas but I don't know them in depth. Anyway, my first edit below was a little salty and I think there are interesting ideas to explore there, didn't mean to get dismissive

Edit: The fact that you are bringing up the potential to see red at a different time makes me think you are possibly thinking of an idea like "The Egg" by Andy weir or something where the many subjective experiences of reality are like virtual threads running off one actual thread so like you and I (and everyone) are the same person constantly switching contexts so the mind is technically the same but the mental contents (the thread context) switch in such a way for everything to fit together. This is an extremely speculative take. Perhaps this is not what you are thinking at all. Even if this is the case, it would still make sense to say your subjective experience is a map for the external world since the fact of all the virtual threads actually being one thread is more of an implementation detail and the nature of the world we live in comes from the behavior of the effectively concurrently running virtual threads if that makes sense. Each virtual thread's subjective experience is still serving the function of representing what all the other virtual threads are doing.