Shares → Windows (SMB) Shares → Edit / Pencil Icon → Advanced Options → Tick “Access Based Share Enumeration”
If you have the purpose set to “Default share parameters” this will be greyed out, you can set the purpose to “No presets” to allow editing these.
If you’re also looking to hide the directories, see By default make files and folders you have no rights to see hidden over SMB / Difference in SMB Share Behaviour Between CORE and SCALE - #28 by Johnny_Fartpants
System → Boot
The boot environments should have a “Date Created” column