Before reading this thread, I never heard of Arc's Peek feature, but I use macOS force-touch URL quick look a lot. Only issues I have with system implementation are the lack of navigation inside and the weird size of the preview window, I even find myself scrolling page to position the link so it wouldn't shrink too much.
If Orion provides a better Quick Look / Preview / Peek / you name it experience for that exact scenario, opening a smaller version of a webview without leaving current tab, but makes it better by allowing to navigate inside and promote it to a full tab if needed, I'd be very happy with it.