chflags(1) on FreeBSD
The text aaf045fed5e6, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
change file flags
Flags it lists
-
-H -
-L -
-P -
-R -
-f -
-h -
-v -
-x