See the parent issue [1] for details. Note that this test appears to be a good candidate for removal since it's redundant with other existing tests. Renato's comment,

One thing that it does have is variance on the number of nodes in the cluster (most other tests just do a basic 3-node cluster). This could be incorporated into the framework at some point as well.

[1] #110528

Jira issue: CRDB-31488