It's 2 nanometers. The 3-nanometer technology is still in the experimental stage, and the cost is expensive. As the semiconductor has been slow to sell this year, so the development will be reduced one after another. Technically, two iterations are required, so it's three nanometers + from the schedule line. However, according to reliable information, around 2025, TSMC will still make 2-nanometer chips by improving the process structure and using microwave to remove the redundancy of the etching machine. Therefore, it is highly likely that the previous normal iteration will be abandoned and converted to 2 nanometers.
The 3-nanometer chip is followed by the 2-nanometer chip