Is it possible to allow users to see only the files/folders they have created in a windows (server 2016 ) shared folder?

a shared folder has been created z://networkshare/workfolder/

user1 has created a file file1.doc and saved to z: drive

user2 has created a file file2.doc and saved to z: drive

Currently both users can see both files. But I would like to restrict user1 to see only file1.doc and user2 only see file2.doc

Is this possible?

Yes, with Access-Based Enumeration.

You will need to configure NTFS permissions appropriately, which can be tricky: the users will need to be able to create files (and/or folders), but they will also need to not be able access files they don't own; you'll also need an ACE which grants full control on new files to their creator, which is represented by the virtual username CREATOR OWNER.

If permissions are configured correctly and ABE is enabled, users will only be able to see files and folders to which they have access.