In the world of server technologies, virtualization has become a key tool for managing IT infrastructure. It allows running multiple isolated virtual machines (VMs) on a single physical server, optimizing costs, increasing flexibility, and improving scalability. But how do you choose a virtualization platform in 2025 when the market offers dozens of options? In this article, we will explore the most popular ones—VMware, Proxmox, KVM, Hyper-V—and analyze who they are suitable for.