[Samba] Flooded log with '..session closed for user nobody'

[BW]

My journal get's flooded with these entries:
2022-12-22 09.14.07  SRV99  smbd     6      pam_unix(samba:session):
session closed for user nobody

Especially when transferring files from a client to a share (in this case
from W10, IP 10.0.1.146, netbios disabled on Windows), authenticated
successfully by user "bw"

All folders-permissions on the share is:
Group: DATAR5 (RWX)
OWNER: bw (RWX)
User "bw" is member of the group "DATAR5"

smbstatus:
Samba version 4.9.5-Debian
PID     Username     Group        Machine
 Protocol Version  Encryption           Signing
----------------------------------------------------------------------------------------------------------------------------------------
19676   bw           bw           10.0.1.184 (ipv4:10.0.1.184:51807)
SMB3_11           -                    partial(AES-128-CMAC)
16903   bw           bw           10.0.1.146 (ipv4:10.0.1.146:56584)
SMB3_11           -                    partial(AES-128-CMAC)
23296   bw           bw           10.0.1.146 (ipv4:10.0.1.146:62674)
SMB3_11           -                    partial(AES-128-CMAC)
16903   bw           bw           10.0.1.146 (ipv4:10.0.1.146:56584)
SMB3_11           -                    partial(AES-128-CMAC)
16202   bw           bw           10.0.1.130 (ipv4:10.0.1.130:52980)
SMB3_11           -                    partial(AES-128-CMAC)

smb.conf:
[global]
        include = /etc/samba/smb_shares.conf
        log file = /var/log/samba/log.%m
        log level = 1
        logging = file
        map to guest = Bad User
        max log size = 1100
        obey pam restrictions = Yes
        pam password change = Yes
        panic action = /usr/share/samba/panic-action %d
        passwd chat = *Enter\snew\s*\spassword:* %n\n
*Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
        passwd program = /usr/bin/passwd %u
        server min protocol = SMB2_02
        unix password sync = Yes
        workgroup = LOCAL.domain.DK <http://local.domain.dk/>

[ARCHIVE]
        comment = R1 5TB Archive
        create mask = 0770
        directory mask = 0770
        path = /mnt/R1_archive/
        read only = No

Any idea how I can prevent these log-entries?