MacOS 12.2.1 Monterey compatible version of dyld_shared_cache_util
Followed the post here: https://lapcatsoftware.com/articles/bigsur.html to recompile dyld_shared_cache_util for Monterey. Luckily his instructions still work for MacOS 12.2.1.
Uploaded the Xcode project and the relevant binary (for those who are lazy to compile it) in bin.
dyld_shared_cache_util -extract ~/shared_cache /System/Library/dyld/dyld_shared_cache_x86_64
Xcode compiles binaries into its own magic folder Click on this menu to open Finder to find it.
