Linux and the Cloud
Another area where the Linux kernel is being widely used is Cloud computing. Each providers (Amazon AWS, Google Cloud, Microsoft Azure,...) offer Linux distros that can be deployed or deleted as needed.
"The term cloud computing refers to a standardized way of consuming computing resources, either by buying the from a public cloud provider or by running a private cloud." LPI Linux Essentials
A report from 2017 states that the Linux Kernel is being used in 90% of the public cloud.