TSMC are researching 2 nm for 2 years already. So AMD will be not left behind here. I would not care about Nvidia - they are miner hardware manufacturers now.
Most likely a misjudgment. AMD has almost nothing to do with manufacturing. The firm is only a customer like anybody else and therefore relies on what foundries like TSMC offer.
And Nvidia is no minor manufacturer. According latest statistics, AMDs share of TSMCs revenue in 2020 was about 3,3 billion US$ whereas Nvidias share was about 3,5 bn. US$. For 2021 the statistic estimates 4,7 bn. US$ for AMD mostly due to SoC production, and Nvidia reduced its volume to 3,0 bn. US$ but they have shifted a large portion of their production to Samsung.
Additionally, which also might be a surprise: Intel with its relatively small outsourced parts is at TSMC almost as large as AMD. Their manufacturing volume was about 2,7 bn. US$ in 2020 and will be about 3,7 bn. US$ in 2021, therefore only the few outsourced parts almost match AMDs complete production at TSMC (CPU chiplets, APUs, GPUs and console SoCs; the only thing missing here is the IOD, which is manufactured at GloFo in 12/14nm).
Apple still is the single largest customer at TSMC according to revenue share: 2020 about 11,0 bn. US$, in 2021 estimated 13,0 bn. US$, but the share cannot be directly transformed into manufacturing volume, because Apple always uses the latest and most expensive node and they additionally pay/support TSMC in their process development. Still their wafer-volume is obviously also much higher than that of AMD.