As I wrote in The New Stack, one of the fastest-growing Cloud Native trends of 2021 is the adoption of WebAssembly (Wasm). With distributed application runtimes like wasmCloud (a Cloud Native Computing Foundation sandbox project we donated this summer) we see WebAssembly appearing on the server and the edge. This in turn addresses the myriad set of challenges hindering distributed application development, deployment, and maintenance.
The reasons behind the surge are broad and driven by CPU diversity, multiple operating environments, security, distributed application architecture, and scalability, all of which transcend deployments into a single public cloud provider.