No surprise, the N3B ("first gen") process has bad economics and poor yields. Everyone else is waiting for N3E, which is pretty different to N3B.
See: https://www.semianalysis.com/p/tsmcs-3nm-conundrum-does-it-e...
https://fuse.wikichip.org/news/7048/n3e-replaces-n3-comes-in...