The 'Add-PnPStoredCredential' command was found in the module 'PnP.PowerShell', but the module could not be loaded

[NiuBClass666]

Add-PnPStoredCredential : The 'Add-PnPStoredCredential' command was found in the module 'PnP.PowerShell', but the
module could not be loaded. For more information, run 'Import-Module PnP.PowerShell'.

We did not have this error by using 1.12.0 pnp module but now we get it with 2.1.1. Does this mean that we need to run 'Import-Module PnP.PowerShell' every time in the future after install-module PnP.PowerShell?

OS: Windows Server 2022 latest
Code:
Install-Module -Name "PnP.Powershell" -Force

      $username = "$(BuildServicesAccount)"
      $password = (ConvertTo-SecureString -String "$(BuildServicesPassword)" -AsPlainText -Force)
      Add-PnPStoredCredential -Name https://myprojecy.sharepoint.com/ -Username $username -Password $password
      Connect-PnPOnline -Url "https://myprojecy.sharepoint.com/sites"

Update:
Adding 'Import-Module PnP.PowerShell' after 'Install-Module -Name "PnP.Powershell" -Force' gave us the following error:

Import-Module : Could not load file or assembly 'System.Management.Automation, Version=7.2.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified

Solution:
It turns out that PnP Module 2.1.1 does not suppport powershell 5.x anymore. Using Powershell 7.x fixed our problem.

[arthurnardy]

Same error, magically appears over the week-end after having worked for months without change in the script -- currently looking for an explanation

[NiuBClass666]

Solution in edited Question section.

[arthurnardy]

I was precisely suspecting this explanation and have been waiting for a update toward 7.x powershell from it colleagues with administratior's rights. Thanks for the confirmation in advance!