I'm using stock Android, Pixel 8 Pro. Highlight text then tap "Copy". See a toast in the bottom left. Tap on it (not the X) and a little text editor applet opens up. Here you can edit the text and save it, updating the value in the clipboard. Then using Gboard, it has clipboard history so you can see and paste the specific recent item from the past hour that you want. (Unfortunately it can't be edited after initially copying although you can long press them in the Gboard menu to pin for longer or delete them).