The questions is not just if the raw data is available ( Google Analytics also has the data accessible in Google BigQuery) but if business stakeholders have the

The questions is not just if the raw data is available ( Google Analytics also has the data accessible in Google BigQuery) but if business stakeholders have the ability to easily access the data and drive decision making. You need an interface that visualizes the data and decentralizes access and analytics as much as possible. Since Google Analytics is free and more or less part of one of the biggest marketing stacks (Google Ads) you will find a lot of marketing stakeholders with at least some knowledge of the tool. But perhaps the landscape will change with the very rocky start of Google Analytics 4