If there is no longer a production capacity shortage for the better production processes, that's great for us gamers, as the companies will actually be able to seriously compete again for market share. Before, they were competing to get production capacity, which meant bidding up the price they paid for manufacturing. So Nvidia's & AMDs production costs went up, putting a high floor on prices, with TSMC making record profits. In the future, the production costs will go down again, allowing for the cards to be sold at lower prices.
And the companies will no longer compete as much for the favor of TSMC, which benefited TSMC and not us consumers, but for the favor of consumers, which means they will compete more on price again.
Of course, there is a lag due to contracts, so we will have a delay before production costs come down fully (this may hurt Nvidia the most, since they seem to have a very expensive huge contract with TSMC, so it's quite plausible that AMD will swoop in and buy up excess Nvidia production capacity for a much lower price than what Nvidia pays from the production capacity that they keep, so AMD can then offer products at a much better price than Nvidia, which can force Nvidia to resell more of their excess production capacity for even lower prices, which allows AMD to undercut them even more, etc).
Of course, if Nvidia is not that competitive, AMD can ask higher prices than they could and make excess profit, so that's not optimal for us.
However, that excess capacity still nice for DDR5 prices, which should go down, as more production capacity comes available at the smaller node sizes. That would be quite nice for AMD, which gambled on cheaper DDR5 for AM5. Also, it makes AMD more competitive with Intel when it comes to CPUs, which is especially nice for the lower end, where AMD wasn't very competitive lately, probably because they paid so much to TSMC.
So I'm getting increasingly hopeful that a very good time for upgrades is coming, although it makes sense for GPU pricing reductions to still lag the prices for other components, unless we get a big flood of mining GPUs.