PowerShell SSH support is available by default in PowerShell v6.0 and later. The big thing for PowerShell v6.0 was SSH based remoting.
On Windows 10 / Server 2019 OpenSSH is available as an optional install. On earlier versions of Windows you need to install OpenSSH – https://github.com/PowerShell/openssh-portable
The installation instructions are available at
If you’re still using Windows PowerShell and need SSH support consider
I think SSH remoting should be considered a must learn as its ideal for non-domain remoting situations and avoids the need for certificates in non-domain scenarios.