Your operations need games providers and payment vendors within management software, CRM tools, Customer Care software, chat systems etc to effectively run a business when you go with your own licenses or loosely defined independent brand setup — meaning that you actually do sign the provider end user license terms.
If you go with a white label and a white label, it works with a given range of approved games vendors and 3rd party integrations and simply shares products / sub-licenses to you, and your choices for new operation add-on providers depending on the markets you are working within are hard-limited because it takes time for a complete integration for full operation with operating efficiencies taken out of the shield.
Therefore finding out the core operation products specification based on what your targeted group uses mostly gives you clear advantage to decide whether an existing platform has a future. Choosing around the right platform and games aggregators will ultimately save a lot of money, growth pains & operating problems.