It looks like they've released a new BIOS with generic release notes (copied below), but I'm hesitant to try it considering the microcode workaround with 13th gen. Maybe some 12th gen CPU users want to test it out since it seems they don't have access to the alternative microcode anyway?
ROG STRIX B660-I GAMING WIFI BIOS 2403
"1. Optimize BIOS & Intel ME update mechanism.
2. Improve system stability"
I have B760I-Strix paired with 13700KF. CB23 Scored 29k-ish stock and if I offset it, It could reduce to sub 20k.
I really wish I could undervolt it. Right now it always pull 253W power everytime I run CB23.