Honestly, I think AMD doesn't even have the choice to be anywhere near as complacent as Intel.

ARM is on the rise, and that means multiple competitors incoming, both in the PC and console space.

Nvidia wanted to buy ARM, and despite that falling apart, Nvidia will be coming out with ARM CPUs (I imagine they're, smartly, letting Qualcomm and MS sort out the teething issues with Windows on ARM before they swoop in and look polished and stable right out of the starting gate).

AMD also doesn't have to pay a shitload to maintain, expand, and improve fabs - that's all on TSMC. So the whole aspect of choosing between investing tens of billions or letting fabs stagnate isn't a thing for AMD.

Yeah they could stay on the same process for 5 years, but I highly doubt they'd do that given the ARM competition, doubly so because they don't want somebody else to take away their "we're TSMC's second favourites behind Apple" position.

In other words, I don't think AMD has the financial incentive to stagnate like intel did. From a business perspective, it was an absolute no-brainer for Intel to stagnate; AMD's comeback was an unlikely one. To date they're the only company that's recovered in the x86 space after falling back into complete irrelevance.