Is there anyway to remove ALLCAPS from a section of text that I’ve copied

So I was just trying to share a quote from some news program and I copied the transcript which of course is completely capitalized since it uses closed captioning to provide the transcript. I know there are other workarounds such as I could just type it up manuallyor I could reiterate using speech to text into another device so that it would use normal speech to text capitalization or all lowercase. But I’m trying to find a way to just transform the text on the same device after I have copied and pasted it. It seems like if you can add several different modes of capitalization by transforming it in pages then you should be able to do so in the opposite direction. But that does not seem to be offered. Does anyone have a way to do this easily?

Even a separate app would be OK, but I’m really mystified that they don’t offer it within pages or notes or within the regular system text entry software.