If you read the full patent, the claims describes a complex process with multiple explicit hardware implementations. On the high level, an ARM processor has "trivial features" - eg a memory block is made up of a specific arrangement of transistors which themselves are all defined in layers of Verilog code. To us, it's just memory, something that stores 1s and 0s, but the patent specifies the exact way memory works. This is exactly what the patent does here, it defines a process in which various different hardware elements interact and synchronise to deliver a "trivial" function. It's not just "this function, but online" but a detailed way of arranging and synchronising the devices to make the function work efficiently.

I think the key part of this patent is that the server provides the stream to all devices. Another, more directly apparent implementation could involve streaming from the server to your phone, then your phone to the other screen. That would achieve the same "trivial" function, but with a different method. Their patented method is to synchronise between the controller (also maybe a moderator, if multiple devices are involved) and the server, such that the server directly connects to the screen being streamed to. This method is novel. Can you provide an example of even one idea that does this, specific process? You claim there are thousands.

"Rounded corners" is literally all there was to Apple's design patent. They drew a drawing of an iPhone, made up of solid and dashed lines, then put a note at the bottom saying "only the solid lines form this patent". The solid lines were a 2D image of the rounded rectangle of the outline of an iPhone along with the rectangle of the display itself. That was clearly a frivilous patent. This is not so clear, and I think meets the bar of a novel implementation. You keep saying it doesn't, but you haven't given any solid reasons why.