I install centos 8 stream (raspberry Pi image) as website server, it’s possible to use below script to swift centos 8 streeam to almalinux by below instruction:
$ curl -O https://raw.githubusercontent.com/AlmaLinux/almalinux-deploy/master/almalinux-deploy.sh
$ chmod +x almalinux-deploy.sh
$ sudo bash almalinux-deploy.sh
reference: How to Migrate to AlmaLinux 8.4 from CentOS Linux – LinuxWays