64-bit architecture offers improved security features, such as larger address space randomization (ASLR), which makes it harder for malicious code to exploit memory locations. For users utilizing VMs for security testing or running untrusted apps, the 64-bit environment provides a more robust sandbox.
Think of it like the "Inception" of operating systems. Your phone runs Android, and inside that Android, F1 VM runs another instance of Android. This guest instance operates independently of the host. It has its own storage space, its own network settings, and crucially, it can run apps that require a different architecture or environment than the host system supports. f1 vm 64 bit