With the light theme, go to Setup and double-click a flow name in the Flows list. The text is selected, but it’s not apparent, I suppose because the selection marker is white, and the flow background is also white. Double-click one of the words in the name and only that word is selected, but again it is not apparent, for the same reason.
Yes, we’re aware of this; indeed, it’s always been this way. But I will mention it to Ant in case it’s something he wants to look at again.