Unhide All Sheets That Do Not Contain Certain Words In Sheet Name

I pulled some code off the internet to “force” users to enable macros by hiding all sheets except a “Welcome Page”. It works great except that it also unhides sheets that are meant to be hidden by when the workbook is opened.

How would I adjust the following code so any sheets/ tabs containing the words “New Project” are not automatically unhidden? Below is the code pertaining to unhiding. I did not paste the code in its entirety as it is fairly long.

Option Explicit

Const WelcomePage = "Macros"

Private Sub ShowAllSheets()
Dim ws As Worksheet

For Each ws In ThisWorkbook.Worksheets
If Not ws.Name = WelcomePage Then ws.Visible = xlSheetVisible
Next ws

Worksheets(WelcomePage).Visible = xlSheetVeryHidden
End Sub