Example for getting evaluated properties from a csproj. Wrote for a build script I ended up not needing currently.

GetCsprojInfo.ps1

$FailOnError = @{ ErrorAction = 'Stop' }
$ModuleName = 'MyModule'
$SourcePath = "$PSScriptRoot\src\$ModuleName"
$TargetSdkVersion = '3.1.100'
$FrameworksToProcess = [string[]]::new(0)
$BoundParameters = @{}
$FrameworkPaths = @{}
$AssemblyVersion = ''
$PackageVersion = ''

$dotnet = Get-Command dotnet.exe -CommandType Application -ErrorAction Stop
$sdkFolderBase = Join-Path ($dotnet.Source | Split-Path) -ChildPath sdk
$sdkFolder = Join-Path $sdkFolderBase -ChildPath $TargetSdkVersion
$msbuildLib = Join-Path $sdkFolderBase -ChildPath Microsoft.Build.dll
if (-not (Test-Path $msbuildLib)) {
    $sdkFolder = Get-ChildItem $sdkFolderBase -Directory |
        Where-Object Name -Match '\d+\.\d+\.\d+' |
        Sort-Object { [version]$PSItem.Name } -Descending |
        Select-Object -First 1 -ExpandProperty FullName

    $msbuildLib = Join-Path $sdkFolder -ChildPath Microsoft.Build.dll
}

Push-Location $sdkFolder @FailOnError
$oldCurrentDirectory = [Environment]::CurrentDirectory
[Environment]::CurrentDirectory = $sdkFolder
try {
    Add-Type -Path $msbuildLib @FailOnError
    $projectPath = Join-Path $SourcePath -ChildPath "$ModuleName.csproj"
    $collection = [Microsoft.Build.Evaluation.ProjectCollection]::new()
    $project = $collection.LoadProject($projectPath)
    if (-not $BoundParameters.ContainsKey('Framework')) {
        $FrameworksToProcess = $project.GetPropertyValue('TargetFrameworks') -split ';'
    }

    foreach ($frame in $FrameworksToProcess) {
        $null = $project.SetProperty('TargetFramework', $frame)
        $project.ReevaluateIfNecessary()
        $FrameworkPaths[$frame] = $project.ExpandString('$(ProjectDir)$(PublishDir)')
    }

    $AssemblyVersion = $project.GetPropertyValue('Version')
    $PackageVersion = $project.GetPropertyValue('PackageVersion')
} finally {
    [Environment]::CurrentDirectory = $oldCurrentDirectory
    Pop-Location
}