Installing Debian package did not work because of error

This parameter set requires WSMan, and no supported WSMan client library was found. WSMan is either not installed or unavailable for this system.

when running

Connect-ExchangeOnline -InlineCredential

Use docker instead:

docker run  \
  -v $HOME:$HOME \
  -v $HOME/.local/share/powershell/:/root/.local/share/powershell/  \
  -v $HOME/.cache/powershell/:/root/.cache/powershell/  \
  -it mcr.microsoft.com/azure-powershell pwsh

Install-Module -Name ExchangeOnlineManagement

Import-Module ExchangeOnlineManagement

$UserCredential = Get-Credential

Then input your credentials:

PS /> $UserCredential = Get-Credential
 
PowerShell credential request
Enter your credentials.
User: user@example.com
Password for user user@example.com: ****************

Connect to exchange:

Connect-ExchangeOnline -Credential $UserCredential

Connect-ExchangeOnline -Device

The command returns a URL and unique code that's tied to the session. You need to open the URL in a browser on any computer, and then enter the unique code. After you complete the login in the web browser, the session in the Powershell 7 window is authenticated via the regular Azure AD authentication flow, and the Exchange Online cmdlets are imported after few seconds.

Get-Mailbox

It should return a list of mailboxes.

• Docker 19.03.8
• Ubuntu 20.04.
• Powershell 7.1.3.-1

• https://github.com/PowerShell/PowerShell/issues/11159
• https://docs.microsoft.com/en-us/powershell/exchange/exchange-online-powershell-v2?view=exchange-ps#install-the-exo-v2-module
• https://docs.microsoft.com/en-us/powershell/exchange/connect-to-exchange-online-powershell?view=exchange-ps#connect-to-exchange-online-powershell-using-modern-authentication