Article is missing the point. Growth is not the hardest problem in a fast-growing market. The real question is whether they're growing faster than their competitors, and that's unlikely.
Per this quarter's results, AWS grew at 37% while GCP notched up 54%. Microsoft claims 62%, but as discussed elsewhere in the comments that seems dubious (unless you also believe that Azure is already larger than AWS). MS "Intelligent Cloud" grew at 27%.
Do you mean in terms of revenue dollars growth, revenue percent growth? Total number of customers growth? Growth amongst solo devs? Growth amongst fortune 500? There are many ways to look at this