Tesco is migrating 40,000 server workloads off VMware due to Broadcom's conduct, and is facing challenges with data security and compatibility with backup software. The company's new virtualization software is incompatible with Veeam and Zerto products. The migration is a significant undertaking, with some commenters speculating that Tesco may be moving to Proxmox or another alternative. The exact details of the migration and the new virtualization software are not specified.