Make the "report video" button load simultaneously with the rest of the "settings" drop down menu on embedded videos, so that the menu's button positioning doesn't change 1 second after loading.

I would love an option that mimics the team page's embed, that it shows the top streamer, or even a random active streamer from the team. So you can just embed one object, and Twitch will do the logic to show whoever is currently live.

Consider a parameter option to display hosted channels if the embedded channel is not live. The parameter option is being suggested so that a broadcaster/developer can choose if they do or do not want hosted channels to display when the experience is embedded.

Make more developer tools for working with embedded clips.
At least, it can be the same tools as for the VODs player (playback api, events etc). Or you can add more features specifically for clips, for example, when you put an array of clips into player it displays as a collection or playlist.

We really need a way to determine what overlays display to the user so we can handle them gracefully. For example, we have no way of knowing when the mature overlay displays and this negatively affects our channel discovery UX.

parent only works for webservers. not everyone wants or needs to run a webserver to embed videos on a localhost page using file:/// this change benefits no users at all. it may help with 3rd party sites, but file:/// is NEVER a 3rd party but is now blocked from being used due to the parent requirement. this is affecting moderation bots and other tools people use on their local computer that isn't served from a webserver.

mute parameter does not work on mobile it is always muted just like autoplay

Add parameter to enable dark mode for chat please.

would love a follow button that works like Twitter Follow/Tweet button. To avoid the need to oAuth-loop it and users would prefer that rather than granting access to their account for developers to throw a follow at any channel.

I would like to work with embeds, and more specifically a way to get how much the current player's stream latency is. From what I can tell, player.getPlaybackStats() was the only way to do this, and is now deprecated, and returns null 99.99% of the time. (I was lucky to get it working once, but yeah, it's gone.)

I want to a way to embed the Twitch player natively inside an iOS app. The existing web embed is not as efficient or usable as a native player could be.