no option to define logic
While in Define Criteria, the option to customize logic is available since long time back.
From above sample, we define Account Source twice, and Support Level twice, the logic for this can be translated as (1 OR 2) AND (3 OR 4).
Here quote from Salesforce documentation Update Records from a Process.
When you define multiple filters, the filter logic usually defaults to AND. However, if multiple filters have the same field selected and use the equals operator, the filters are combined with OR. For example, your filters check whether a case’s Type equals Problem (1), Type equals Feature Request (2), and Escalated equals true (3). At runtime, those filters are combined to (1 OR 2) AND 3.
Reference: Update Records from a Process