We still see the echos of it to this day as PC based gaming is confined to the closed platform of Microsoft DirectX as they managed to squeeze out and nearly kill off OpenGL. To this day no alternative has threatened this monopoly as Linux and OSX gaming has been utterly subdued by Windows and never took a foothold.
There was no "slipup with ActiveX rollout" - it worked fine on a single CPU architecture and did what it was supposed to do. But it was never going to have adequate security to be widely used on the low-trust web, and i86 was never going to take over mobile. It was a technology dead end.
So you'd be fair to talk about how things felt in the 90s, but the current state of the world is not an "accident of history".
There's lots of 3D graphics in the majority of my Steam library that I can play on my MacBook.
This is much easier to say in retrospect, of course, but it's truth nevertheless: ActiveX was never going to "win" the web because it was fundamentally tied to one CPU architecture. It wasn't close at all, for all the same reasons that MS never made a successful mobile device. Or that Flash failed. Some technologies are just dead ends, even if they seem popular for a while.