How to mount SMB shared folder (of a Mac) with Linux?

I am trying to mount a shared folder located on a Mac Mini using a machine running Ubuntu. On the Mac Mini, a specific user of type "Share Only" has been created with access permissions to the folder. I have tested the credentials and access to the shared folder from another Mac Mini, and everything works correctly.

While searching online, I found that it is possible to mount the folder on Linux using the "cifs-utils" package with the following command:

sudo mount -t cifs //192.168.1.2/Projects /root/projects/ -o noauto,user,credentials=/root/.smb-credentials,noperm,uid=501,gid=20,sec=ntlmssp,nounix

where the file /root/.smb-credentials contains the following lines:

username=user123
password=pass123
domain=WORKGROUP

However, when I attempt the connection, I receive the following response:

mount error(13): Permission denied
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

The following lines appear in the dmesg log:

[5715189.427134] CIFS: Attempting to mount \\192.168.1.2\Projects
[5715189.467070] CIFS: Status code returned 0xc000006d STATUS_LOGON_FAILURE
[5715189.467093] CIFS: VFS: \\192.168.1.2 Send error in SessSetup = -13
[5715189.468245] CIFS: VFS: cifs_mount failed w/return code = -13

The protocols supported by macOS Ventura are (test performed by Linux):

Host script results:
| smb-protocols: 
|   dialects: 
|     2.02
|     2.10
|     3.00
|_    3.02

Here are the important points:

• The entered credentials are correct and have already worked on another Mac-to-Mac connection.
• We are on an internal network, and firewalls have been completely disabled for testing purposes.
• We have already tried disabling SMB 3.x to use only SMB 2.x, but the error persists.
• All mount command options have been removed, leaving only the minimum required for the connection.

What is missing?