Veeam Backup & Replication has several roles and for some of them you can use a Linux OS to implement specific roles. With the recent release of Veeam Backup & Replication 13 (actually only for Linux) ...
bofied is a network boot server. It provides everything you need to PXE boot a node, from a (proxy)DHCP server for PXE service to a TFTP and HTTP server to serve boot files.
CentOS 8.4 or 8.5 is required to convert to AlmaLinux. It is recommended to update to 8.5 prior to moving to AlmaLinux but not required if you are on at least CentOS 8.4. Rebooting after the updates ...