... https://docs.tigera.io/calico/latest/networking/ipam/migrate-pools
metadata:
labels:
app.kubernetes.io/managed-by: tigera-operator
...
Had to remove that .metadata.labels entry to prevent the tigera-operator from reverting any changes. It is required to document, back up, and thoroughly test this customization.
Observed the operator replacing the label on the new ippool in use.
Only perform this operation in a lab environment. If done elsewhere, you're announcing how incredibly stupid and foolish you are.