OpenIndiana Distribution

Can you elaborate?
I have checked on my systems and found gas(1) at /usr/gnu/share/man/man1/as.1 with expected contents.
The file details look like this:
╰─➤ ll /usr/gnu/share/man/man1/as.1
r--r--r- 1 root bin 119794 Mai 26 19:06 /usr/gnu/share/man/man1/as.1

; cat /usr/share/man/man1/gas.1
'\" te

.\" Oracle has added the ARC stability level to this manual page
.SH ATTRIBUTES
See
.BR attributes (5)
for descriptions of the following attributes:
.sp
.TS
box;
cbp-1 | cbp-1
l | l .
ATTRIBUTE TYPE    ATTRIBUTE VALUE 
=
Availability    developer/gnu-binutils
=
Stability    Uncommitted
.TE
.PP

.SH NOTES

.\" Oracle has added source availability information to this manual page
This software was built from source available at https://openindiana.org/.  The original community source was downloaded from  https://ftp.gnu.org/gnu/binutils/binutils-2.37.tar.xz

Further information about this software can be found on the open source community website at https://www.gnu.org/software/binutils/.

             Name: developer/gnu-binutils
          Summary: GNU collection of binary tools like ld, as
         Category: Development/GNU
            State: Installed
        Publisher: openindiana.org
          Version: 2.37
           Branch: 2022.0.0.1
   Packaging Date: March 14, 2022 at 02:11:12 PM
Last Install Time: August 21, 2019 at 03:35:07 AM
 Last Update Time: March 24, 2022 at 07:06:35 PM
             Size: 68.79 MB
             FMRI: pkg://openindiana.org/developer/gnu-binutils@2.37-2022.0.0.1:20220314T141112Z
      Project URL: https://www.gnu.org/software/binutils/
       Source URL: https://ftp.gnu.org/gnu/binutils/binutils-2.37.tar.xz

; pkg list -fav gnu-binutils
FMRI                                                                         IFO
pkg://openindiana.org/developer/gnu-binutils@2.37-2022.0.0.1:20220314T141112Z i--
;

On my system:
╰─➤ ll /usr/share/man/man1/gas.1
lrwxrwxrwx 1 root root 32 Apr. 1 11:36 /usr/share/man/man1/gas.1 -> ../../../gnu/share/man/man1/as.1

And we have binutils-2.38 for a few days already.