There is something fishy going on with sshd versioning anyway. ssh -v <my_nas> shows version 9.3:
debug1: Remote protocol version 2.0, remote software version OpenSSH_9.3
debug1: compat_banner: match: OpenSSH_9.3 pat OpenSSH* compat 0x04000000
on unraid ssh -V shows the same 9.3 version:
# sshd -V
OpenSSH_9.3, OpenSSL 1.1.1v 1 Aug 2023
but using an unknown parameter displays the patched version?
# sshd -v
unknown option -- v
OpenSSH_9.3p2, OpenSSL 1.1.1v 1 Aug 2023