No modern hypervisors emulate a Voodoo 3D card. The upcoming 86Box release will probably have Riva 128 and ATI Rage 128 emulation as well.

Using an accurate emulation of such a device means you can use the drivers that existed back then that games back then were QA'd on.

Most modern hypervisors aren't built with Windows 98 in mind, either - it's not really what they're for, and a modern Mac can't run an x86 hypervisor anyway.