How do I enable samba 4.13 access without specifying a domain?

Can you tell me, I have a domain controller (cloud.cloud.domain.ru) on samba 4.13 connected to it as a file balloon (fs.cloud.domain.ru) . I can connect to the server with the domain controller without using the domain in the login. On FS it is obligatory to enter the domain.

cloud.domain.ru

# Global parameters
[global]
        netbios name = DC1
        realm = CLOUD.domain.ru
        server role = active directory domain controller
        server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbindd, ntp_signd, kcc, dnsupdate
        workgroup = CLOUD
        idmap_ldb:use rfc2307 = yes
        bind interfaces only = yes 
        interfaces = 127.0.0.1 172.16.211.1
        ldap server require strong auth = no 
        domain master = yes  
        local master = yes
        preferred master = yes

        vfs objects = acl_xattr dfs_samba4 full_audit
        map acl inherit = yes
        inherit permissions = yes
        inherit owner = yes
        store dos attributes = yes
        # LOG
        log file = /var/log/samba/log.%I

        # TLS
        tls enabled = yes
        tls keyfile = tls/key.pem
        tls certfile = tls/cert.pem
        tls cafile = tls/ca.pem

        # NTLM FIX
        ntlm auth = Yes

fs.cloud.domain.ru

# Global parameters
[global]
        security = ADS
        workgroup = CLOUD
        realm = CLOUD.domain.ru
        #encrypt passwords = yes
        # Default idmap config for local BUILTIN accounts and groups
        idmap config * : backend = tdb
        idmap config * : range = 3000-7999
        # idmap config for the CLOUD domain
        idmap config CLOUD : backend = rid
        idmap config CLOUD : range = 10000-999999
        winbind enum users = yes
        winbind enum groups = yes
        winbind use default domain = yes
        #map untrusted to domain = yes
        domain master = no  
        local master = no

        vfs objects = acl_xattr full_audit
        map acl inherit = yes
        inherit permissions = yes
        inherit owner = yes
        store dos attributes = yes

        # Disable printers
        load printers = no
        show add printer wizard = no
        printcap name = /dev/null
        disable spoolss = yes

        # TLS
        tls enabled = yes
        tls keyfile = tls/key.pem
        tls certfile = tls/cert.pem
        tls cafile = tls/ca.pem

        # NTLM FIX
        ntlm auth = Yes
        #client ntlmv2 auth = Yes

        # LOG
        log level = 1 auth:2 vfs:1
        log file = /var/log/samba/log.%I
        max log size = 1024
        # audit
        full_audit:failure = stat
        full_audit:success = open
        full_audit:facility = local5
        full_audit:priority = notice

        # RECYCLE
        recycle:repository = .recycle/%U