Running a Debian Bookworm hypervisor using KVM/QEMU with virt-manager for vms + Incus for lxc containers gives you a lot of freedom with how you use it.
edit: It also means you build your own hypervisor from parts - kinda like installing postfix/dovecot/mariadb/spamassassin instead of a packaged solution like mail-in-a-box. It takes more time and effort but I find I understand the underlying technologies better afterwards.