That may sadly be true. A lot of vendors are heavily Windows centric and only grudgingly support Macs.
As I was tallying what I needed to update/upgrade to be fully compatible with Catalina, I found there was no 64 bit version of Seiko's Smart Label Creator for my older model 420 label printer. They've had 64 bit Windows software for that model for at least two years, but wouldn't update the Mac software. The only way to get 64 bit software was to buy a completely new label printer.
That ticked me off enough that I first thought I wouldn't buy another Seiko device, but after reading worse reviews on virtually any other label printer for Macs (many have no Mac software at all), I bought the model 650 printer. Turned out to be a good thing as it prints labels at least 30 times faster than the 420.
The worst part of this is all vendors knew, or should have known, for at least the past two years that they would have to have 64 bit versions ready fairly soon. That they still don't shows how little they care about their Mac customers.