Shopify is very good, and most businesses asking this question have not outgrown it. They have outgrown how it is set up, which is a smaller and much cheaper problem.
This tells you which of those two you are, in about two minutes. You do not need to be technical to answer any of it, and there is nothing here you have to buy.
Your result appears on screen. No email address required to see it.
This is a starting point for a conversation, not an audit. The questions are weighted by how expensive each thing is to unpick later, and the heaviest weights sit on the limits that do not improve on their own. Most people who take this are told to stay where they are, which is the honest distribution rather than a modest one.
Most of what it recommends costs nothing and does not involve changing developer. If your answers show the project is fine, it says so.
Connecting Shopify to Xero · Shopify reporting and dashboards