I would love to do multicolor or multimaterial printing, but there’s no alternative to the AMS right now. I also feel like the “right way” to do this is how the Prusa XL does it, which is multiple extruders. This cuts down significantly on the amount of waste, though the quality of the AMS approach still seems to be better for now. Granted, I haven’t actually needed to print multiple colors or materials yet, so it’s not really a big deal.
I’d argue that Perplexity is in this camp as well. It’s my go-to for anything more open-ended or for multi-step research I need to do. No need to wade through garbage search results, and it cites its sources. Kagi seems to be doing very much the same thing, but in addition to their paid search engine service.
I don’t know that I’d switch from Perplexity, but I could see an argument for it.