Few ideas
Blocks are too large, please reduce them, I only need small icons(max 50px) or instead of ad icons, only the numbers 30, 60, 90... so you don't have to do new graphics and maybe hovering over the text should show a hint tooltip or something, I don't need to see the text with what the blocks mean.
Let us to turn off useless windows such as activity feed(i use alerts and chatbot for that) and let us scale the windows the way we want, that is, give us the tool after clicking this tool we will go into edit mode and they will appear on the corners with that thing we can click and drag like tools for photo resize or something.
Window with video player are unused space because if window is scaled then on top and bottom is so much free space, but you don't let us use that... I only need to see the video player, and if you really want to put a title on this New Creator Dashboard, you can place it next to the widget with time, viewers, views, followers, etc.
For me even that name "Stream Manager" is waste of space. You could do anything useful there, e.g. this blocks with small icons or more widgets or something more useful.
Fix this Quick Action tool for positioning, because after changing the order of e.g. one block from end to center and everything breaks down and instead of changing the order of one block you also need to change all that are right from it to the end, I think that instead of setting the block position it swaps them.
I focus most on the small video player to see if everything is ok and chat, currently I am not using the New Creator Dashboard because of space wastage, but I would love to use it because the quick action buttons sounds very good and helpful.
unused space video player https://imgur.com/a/hTaz26c
unused space on top and title https://imgur.com/a/tvjQZJj