REPORT: Arm is sensationally canceling the license that allowed Qualcomm to make Snapdragon chips which power everything from Microsoft's Copilot+ PCs to Samsung's Galaxy smartphones and tablets
Not only has it been denied by both parties, it would 100% not go ahead. Additionally, it would invalidate the x86 cross-licence that AMD and Intel have, meaning Intel would no longer be able to make modern x86 CPUs. Frankly it's also somewhat doubtful Qualcomm wants to take Intel on.
The rumour was likely someone trying to pump up the stock and sell.
X64 doesn't exist. Microsoft used the label for Windows for a while to distinguish from IA64 (Itanium) and 32bit x86 editions of Windows but these days Microsoft moved mostly away from those labels and only uses them when talking about ARM.
The x86 license itself doesn't matter much anymore. Those patents expired a long time ago. Early x86_64 is held by AMD, but those patents are also expiring soon.
There's more advancements past that which are held by both Intel and AMD. You still can't make a modern x86 CPU on your own. Soon, you'll be able to make a CPU with an instruction set compatible with the first Athlon 64-bit processors, but that's as far as it goes.