Looks like CBN (Nigeria) was not one of the 26 central banks that participated.
Annex 1: Central banks participating in the survey Twenty-six central banks participated in the 2022 EME Deputy Governors survey from the following jurisdictions:
And this with the eNaira ranking #1 for "most developed" (retail) CBDC:
The race to digital money is on – PwC’s 2022 CBDC Global Index shows which central banks are in the lead #20320 https://www.pwc.com/gx/en/news-room/press-releases/2022/pwc-cbdc-global-index-2022.html