When the same code in the same system gives you different results.

Yes, I know is not exactly the same system but it should behave the same, right? That is the thing with virtual machines…

The proof:

aria2c

On the right hand side is Fedora 34 running in gnome-boxes and on the left hand side is Fedora 34. The version of aria2c is the same in both terminals.

By the way, that line is supposed to make aria2c to seed for only one minute, not a nice thing to do, after the download is complete and exit aria2c automatically.