[tomwojcik]

I heard it used to be similar in ING but they slowly migrate some services to Azure for quite some time now.

I bet they will never fully migrate (and they don't want to).

Not affiliated with ING in any way, its just what I heard.

[mvdwoord]

They did manage to get rid of their mainframes though ...

A imho healthy aspect of the move towards public cloud is to start with an exit strategy. This is turning out to be quite tricky. Some services though can be sourced from public cloud (ci/cd, ticketing, planning etc) but core workloads not so easy.