Let me rephrase: The YouTube site that you can install locally as a web app via Orion > Tools > Install this site as an app does not currently allow you to open more than one YouTube window as you can with the YouTube web app installed from Chrome, and therefore you cannot switch between multiple YouTube windows as you can with the YouTube web app installed from Chrome.
I don't know the inner workings of Chrome's YouTube web app, but I like that I can have multiple YouTube videos stacked together and that I can watch any video I want from the stack at any time by clicking either Subscriptions or Explore, which opens a new window where I can 'save' a YouTube video and add it to the stack.
Does this help?
PS: I probably should've titled the post --Allow multiple windows to open from within Orion's YouTube web app--, sorry.
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Currently, Orion only allows one YouTube video to be open in a window at a time Orion only allows you to open one YouTube window with the YouTube web application from Orion. This can be inconvenient for users who want to watch multiple videos at the same time or switch between videos quickly. I suggest that Orion allow users to open multiple YouTube windows, similar to how Chrome and other browsers do Orion allow users to have multiple YouTube windows open at the same time, similar to Chrome and other browsers.