Fusion e.x.p (22068932) is the current Fusion beta. (VMware uses the term Technology Preview instead of Beta but they're the same thing.)
Rosetta in a Linux VM is supported using Apple's high-level Virtualization framework. Fusion uses Apple's low-level Hypervisor framework which, at this time, does not expose support for Rosetta in a Linux VM. Consequently, Fusion will not support this feature in the foreseeable future.
(I use Fusion for most of my VMs but I also use UTM for a Debian VM with Rosetta support for an Intel application which the author has no intention of porting to ARM.)