Below I include my Unraid (Version: 6.10.0-rc1) "Samba extra configuration". This configuration is working well for me accessing Unraid shares from macOS Monterey 12.0.1
I expect these configuration parameters will work okay for Unraid 6.9.2. The "veto" commands speed-up performance to macOS by disabling Finder features (labels/tags, folder/directory views, custom icons etc.) so you might like to include or exclude these lines per your requirements.
Note, there are problems with samba version 4.15.0 in Unraid 6.10.0-rc2 causing unexpected dropped SMB connections… (behavior like this should be anticipated in pre-release) but fixes expected in future releases.
This configuration is based on a Samba configuration recommended for macOS users from 45Drives here: KB450114 – MacOS Samba Optimization.
#unassigned_devices_start
#Unassigned devices share includes
include = /tmp/unassigned.devices/smb-settings.conf
#unassigned_devices_end
[global]
vfs objects = catia fruit streams_xattr
fruit:nfs_aces = no
fruit:zero_file_id = yes
fruit:metadata = stream
fruit:encoding = native
spotlight backend = tracker
[data01]
path = /mnt/user/data01
veto files = /._*/.DS_Store/
delete veto files = yes
spotlight = yes
My Unraid share is "data01". Give attention to modifying the configuration for your particular shares (and other requirements). I hope providing this might help others to troubleshoot and optimize SMB for macOS.