Virtualization under Bookworm

[Carl Fink]

Hi,

I have a project that I'd like to work on in a virtual machine hosted on 
my Bookworm system. In the old days (5-10 years ago) I used VirtualBox, 
just from inertia. I haven't really virtualized since then.

What's the current recommendation for someone who just wants to create a 
one-off VM to run Debian under Debian? As this is not my job or even 
main hobby, ideally it should have setup at least as easy as VirtualBox 
was back in the day.

System is an ASUS ExpertCenter PN52 (Ryzen 7 6800, 32 GB of RAM, 2 
terabyte SSD).

Thank you.

-Carl Fink