PowerShell 7 script to stop the PC from going to sleep if there are any active streams

plex-anti-sleep.ps1

# Plex on Windows Anti-Sleep
#
# References
# Gist: https://gist.github.com/KakersUK/d090e1836ffb881d29c9f529b380f795
# Install PowerShell 7: https://learn.microsoft.com/en-gb/powershell/scripting/install/installing-powershell-on-windows?view=powershell-7.3#winget
# X-Plex-Token: https://support.plex.tv/articles/204059436-finding-an-authentication-token-x-plex-token/

# Host variables
$PlexHost = '127.0.0.1'
$PlexPort = 32400
$PlexToken = ''

# Create Windows shell object.
$WshShell = New-Object -ComObject WScript.Shell

# GET the active play session information from our Plex API.
$xmlResponseIRM = Invoke-RestMethod "https://${PlexHost}:${PlexPort}/status/sessions?X-Plex-Token=${PlexToken}" -SkipCertificateCheck -Method Get

# If the sessions are greater than 0, Plex is streaming. Send a Shift + F15 key combo to keep the PC awake.
If([int]$xmlResponseIRM.MediaContainer.size -gt 0){
    $WshShell.SendKeys('+{F15}')
}

hi the script isn't working can you please rectify
Tried everything allowing executionpolicy in PowerShell both versions to remotesigned and unrestricted
allowing in firewall exceptions ,running pwsh.exe as admin shortening time to when task scheduler runs the script ,script runs fine and completes via windows task scheduler
trying on two separate machines
double checked plex tokens and they are fine too

UPDATE: no does not work on any machine plex servers still sleep when streaming from