Query on DAX Equation

hosea_chumba create this calculated column:

Status = 
VAR _current_client = 'Table'[Client ID]
VAR _client_products = 
    CONCATENATEX(FILTER('Table', 'Table'[Client ID] = _current_client), 'Table'[Loan Product ID], ", ")
VAR _client_products_without_education = 
    CONCATENATEX(FILTER('Table', 'Table'[Client ID] = _current_client && 'Table'[Loan Product ID] <> "Education"), 'Table'[Loan Product ID], ", ")
VAR _has_education = CONTAINSSTRINGEXACT(_client_products, "Education")
VAR _has_anything_else = NOT( ISBLANK(_client_products_without_education)) 
VAR _result = 
    SWITCH(
        TRUE(),
        _has_education && _has_anything_else, "Education + more",
        _has_education && NOT(_has_anything_else), "Only Education",
        "No Education"
    )
RETURN
    _result

      

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