Despite not knowing why they identify with the racist bigot dog whistles, they also don't make any effort to self-examine why they want to be accepted by that crowd in the first place.

If they don't know, how could I ever? There's no closure to be had.
It's time to move on with my life.

The video in question (timestamp 12:10):
youtu.be/y0wG6CMEq_4?...

Meaning, they couldn't buy otherwise compatible disk packs from other sources, because the dealer deleted that format software.
The modern equivalent would be a company making a computer only work with USB thumb drives they sold.

Because of course they did.

Yerp, it's dumb. And it's an issue with multiple printer brands... and 5Ghz WiFi has been a common thing for over a decade now.

Is likely the cheap wifi radio in the printer. If it can only connect to 2.4Ghz, and you 2.4Ghz+5Ghz WiFi with the same network name, you have to temporarily disable the 5Ghz, setup the printer WiFi, then once printer is setup and connected, enable 5Ghz WiFi again.

That's fantastic! Good job!