As normal user (at a Silverblue-34 machine, connecting to a guest only rw samba share in Fedora-34), smbclient works: (can create new folder) smbclient //192.168.102.11/Share -U guest -N
How, as a normal user, to do a mount -o ... //192.168.102.11/Share ~/smb ?
Seems like an intentional restriction for security reasons.
I guess that sudo/sudoers is the expected way of privilege elevation.
Using x-systemd.automount should provide another workaround.
If I do sudo mount -o user=guest,password="" //192.168.102.11/Share /mnt/smb as user, then the mount is OK. But when doing mkdir /mnt/smb/newfolder got