At our place we couldn't sell our cloud SaaS solution for years, almost everyone wanted on-prem. Suddenly it was like someone threw a switch and now all we can sell is SaaS.
Same product, same solution, we've gone from six cloud customers two years ago to over twenty. It is literally just that the finance and banking sector have suddenly pivoted to cloud, even the few customers who are "on prem" are deploying it in their own private cloud. Very few of our customers have actual physical servers any more, the transition has been incredibly fast.
Which is all well and good, until Azure B2C sharts itself, or AWS pull part of the infrastructure out from under us, or you actually take a close look at those hosting costs...... Always on, fixed size instances. Yeah, not exactly the best use case for cloud.