Azure App Registration and (ConfidentialClientApplication) returns Account NULL and Token not working for querying GraphApi (401)

Question

I'm using the following code in a console application to identify it as registered azure app.

        //https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/wiki/Client-credential-flows
        var currentClaims = ClaimsPrincipal.Current; //currentClaims null
        var app = ConfidentialClientApplicationBuilder.Create(settings.ClientId)
        .WithClientSecret(settings.ClientSecret)
        .WithTenantId(settings.TenantId)
        .WithAuthority(new Uri(settings.Authority))
        .Build();
        app.AddInMemoryTokenCache();
        AuthenticationResult result = null;
        AccessToken? _accessToken = null;
        try
        {
            result = await app.AcquireTokenForClient(scopes: new[] { settings.ScopeApplicationIDURI })   //api://ConsoleApp1AppRegistrationAzure/.default
                .ExecuteAsync();
            _accessToken = new AccessToken(result.AccessToken, result.ExpiresOn);
        }
        catch (MsalServiceException ex) when (ex.Message.Contains("AADSTS70011"))
        {
            // Invalid scope. The scope has to be of the form "https://resourceurl/.default"
            // Mitigation: change the scope to be as expected
        } 

Acquireing the token works and I receive the following result like:

Variable	Content	Type
result	{Microsoft.Identity.Client.AuthenticationResult}
AccessToken	"eyJ0eXAiOiJKV1....tg"	string
Account	null	Microsoft.Identity.Client.IAccount
AuthenticationResultMetadata	{Microsoft.Identity.Client.AuthenticationResultMetadata}
ClaimsPrincipal	null	System.Security.Claims.ClaimsPrincipal
CorrelationId	{6cdf59da-632c-4cbd-b1f3-5cb615a87391}	System.Guid
ExpiresOn	{3/5/2022 3:27:51 PM +00:00}	System.DateTimeOffset
ExtendedExpiresOn	{3/5/2022 3:27:51 PM +00:00}	System.DateTimeOffset
IdToken	null	string
IsExtendedLifeTimeToken	false	bool
Scopes	Count = 1	System.Collections.Generic.IEnumerable
SpaAuthCode	null	string
TenantId	null	string
TokenType	"Bearer"	string
UniqueId	null	string

However, why is result.Account null? Shouldn't I receive an account with a claim with access_as_application. This is how the app looks like in Azure:

How can I recieve with result.Account an account with the claims.

Also, querying the graph api or my app configuration (where my app has a reader role) returns 401 when using the access token.

GET https://graph.microsoft.com/v1.0/me HTTP/1.1
Host: graph.microsoft.com
Accept: application/json
Authorization: bearer eyJ0eXAi...

[Edit] Thanks to @Gaurav Mantri, I found https://docs.microsoft.com/en-us/graph/auth-v2-service#4-get-an-access-token which solves the second part of the question.