In a move that could profoundly affect an already beleaguered global supply chain, Arm has reportedly issued Qualcomm a 60-day notice of cancelation for

It's the former that Qualcomm has done with Snapdragon X, so the licence cancellation would apply to custom CPU designs, but not to other Qualcomm chips based on Arm CPU core designs. In other words, the cancellation wouldn't mean that Qualcomm couldn't produce any Arm chips at all, just Arm chips with its own in-house CPU core designs.