

To give some perspective: BitTorrent was released in 2001. So in the 90s, you’d be looking at some precursor to that. And the first CD recorder to cost less than $1000 was sold in 1995. Before that, they’d cost something like a car.
We definitely shared and copied a lot of floppy disks back then. And music on tapes.

I think the added benefit of an OpenWRT router is, you get 3 more ports (for your TV, Playstation and PC), plus a Wifi network. And it’s really hard to break it. But a MiniPC with OPNsense, of course will be more powerful. And some more advanced things have been notoriously difficult to set up in OpenWRT, maybe OPNsense does it a bit better.