I'm using second product - Connectix VirtualPC (for Windows) because at this time this was only that can run on Windows98SE. VMW require NT/2K at this time. But i couldn't migrate to NT platform due project limitations.
VPC works flawless in version 4, but for version 5 they require NT platform too.
I installed Windows 95 on a Mac with VirtualPC back in... 1995. All 26 floppies of it. Installation done, it rebooted the virtual box, and I had to go to a meeting. Cane back an hour or so later, and it had just finished booting up. Good times.
Then Microsoft bought them, and I think afterwards the Mac version was no longer supported.
(PowerPC was a consortium of Motorola, IBM, and Apple, and was made out of silicon... so technically, that would be "Intel Virtualization on Apple Silicon". :-) )
Virtual PC on Mac got at least one major release after Microsoft bought Connectix, but that was right around the same time as Apple's transition to Intel. MS apparently didn't consider it worthwhile to port VPC to run natively on Intel OSX (which would've been a pretty big change in direction for the product-- moving it to native virtualization like on Windows rather than the dynamic recompilation approach that the Mac version used).
Also at this time processors for Windows comes with virtualization extensions - VT-x and AMD-V. So Microsoft focused on making their product better just for Windows.
Later they're expanding into Virtual Server and famous "Windows XP Mode" on Win7.
Even though I do not use it professionally I think Hyper-V is very underrated - it is built in for free to many versions of Windows 10 and is pretty easy to get a VM running even by the average power user type person.
VPC works flawless in version 4, but for version 5 they require NT platform too.