It should show the counters on local machine as this.
PS C:\Users> get-counter -ComputerName localhost

Timestamp                 CounterSamples
---------                 --------------
4/5/2021 10:40:56 PM      \\machine-name\network interface(intel[r] ethernet connection [2] i219-lm)\bytes total/sec :
                          40043.808440110326

                          \\machine-name\network interface(teredo tunneling pseudo-interface)\bytes total/sec :
                          0

                          \\machine-name\processor(_total)\% processor time :
                          3.4426578082911163

                          \\machine-name\memory\% committed bytes in use :
                          84.483113508784

                          \\machine-name\memory\cache faults/sec :
                          201.8730016946339

                          \\machine-name\physicaldisk(_total)\% disk time :
                          0.12240490075025934

                          \\machine-name\physicaldisk(_total)\current disk queue length :
                          0



PS C:\Users>

PS C:\Users> get-counter -ComputerName localhost
Get-Counter: The default values for this command failed. Error: 800007d0.
Get-Counter: Unable to connect to the specified computer or the computer is offline.
Get-Counter: The default values for this command failed. Error: 800007d0.
Get-Counter: Unable to connect to the specified computer or the computer is offline.
Get-Counter: The default values for this command failed. Error: 800007d0.
Get-Counter: Unable to connect to the specified computer or the computer is offline.
Get-Counter: The default values for this command failed. Error: 800007d0.
Get-Counter: Unable to connect to the specified computer or the computer is offline.
Get-Counter: The default values for this command failed. Error: 800007d0.
Get-Counter: Unable to connect to the specified computer or the computer is offline.
Get-Counter: The default values for this command failed. Error: 800007d0.
Get-Counter: Unable to connect to the specified computer or the computer is offline.
PS C:\Users>

PS C:\Users> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      7.0.0
PSEdition                      Core
GitCommitId                    7.0.0
OS                             Microsoft Windows 10.0.18363
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

PS C:\Users>