Sonos’ target audience is people who want multi-room audio or to better their TV sound.

I presume the ‘triangular thing’ you refer to is the Roam?

I use my Roam as a computer speaker daily.  Bluetooth.  Works great.

It just needs a quick swap of the PC sound card for one that has audio optical output. I think Soundblaster make a couple of PCIe cards, aswell as quite a few other manufacturers. 

Simply cable that to any Sonos HT device. The Sonos Beam is quite popular for this type of setup, although personally speaking I would perhaps prefer something a little smaller on my own single screen computer desk.

I didn’t take this as a serious complaint.  Seems to be complaining about Roam, profile says only owns a sub, and I have no idea what the path to substantial means.

There’s always this thread, too, if one wants:

Just a drive-by troll. Ignore

Since it’s ‘birds’...more like a fly by pooping?