Yeah I think 7 was when it was a big blip on the radar. But 100% they had to start laying that foundation beforehand, so I wouldn’t be surprised if it was either always there or started making its way in 98.
95 was relatively groundbreaking and a part of me thinks the PC was so new they hadn’t thought of it yet or if it was even possible given the nature of internet, but you can’t put anything past the marketing guys that would probably love to know what colour your shit is.