https://www.statista.com/statistics/506534/microsoft-sales-marketing-expenditure/ https://www.statista.com/statistics/506534/microsoft-sales-m... According to

https://www.statista.com/statistics/506534/microsoft-sales-marketing-expenditure/ https://www.statista.com/statistics/506534/microsoft-sales-m... According to that, Microsoft's budget was 20 billion. I bet quite a bit of that goes towards convincing developers to lock into their ecosystem