If you are one to use lots of specialized hardware, you will have big trouble finding a driver outside of the windows realm.
For the people who simply use the computer for computing and browsing, the other operating systems are sufficient.
I have two sound cards and a predecessor of the "all-in-wonder" series cards that allows me to input and output any format video or audio signal except for firewire on a pentium 200 box I built in 1995. It also has Ultra fast and wide scsi and a raid controller. (not to be confused with the weaker ultra scsi).
I had very few issues getting the drivers to work in windows 95 and I still use that box now because one of the soundcards has a hardware sampler with 28 megs of sample ram that will play notes from a midi controller with ZERO LATENCY........because it is hardware. It also has spdif digital out which I record with the other sound card.
My slightly newer box runs win98SE and has 3x soundcards allowing 16 channels of hardware ADAT input and output going through a digital mixer as well as having the same hardware synth as the win95 box with zero latency.......because the KT7A raid still had a 16 bit ISA slot.
It can also input and output any type of audio or video signal through the all-in-wonder 8500dv card including firewire and I had zero issues finding drivers to work with it.
I was able to get this functionality in 1995 for the older box and 2000 for the newer one and it would not have been possible to do that with any operating system other than windows.
My older boxes work so well, that my "new box" is used only for browsing and gaming.
Even today, there are issues trying to get even a single expansion card working in operating systems other than windows while I can still pack a ton of cards into a windows based system.