One thing to keep in mind about a 10-20% price hike from TSMC is that it's unlikely to result in a significant price increase to most products at retail, since the actual cost of a chip generally only amounts to a relatively small portion of the product's sale price.
Something like a Ryzen 5000 CPU, for example, already has a huge markup at retail over what AMD actually pays for the processor's chips. AMD doesn't likely pay TSMC much more than $20 for a 7nm chiplet, so even a 20% increase on that would have almost no effect on the price at retail. Even adding in the IO chip from Global Founderies, and the cost of packaging them together, the actual manufacturing costs on something like a 5800X is probably not all that much more than $50 or so. There is of course R&D costs that a company like AMD has to recoup, so the remainder is not all profit, but that part of the total cost isn't going to TSMC.
Graphics cards tend to use much larger chips, but still, a 10% price hike on the 7nm node probably wouldn't result in much more than a $10 manufacturing cost increase for a higher-end card.