They even made PostScript laser printers that were built like tanks and were a by-word for reliability.
Now they are just famous for being the printer brand everyone hates, and this is just scraping the bottom out of an already empty barrel.
If you're a late millennial/early zoomer, you probably know IBM had a sort of "golden age" from the 1960s through the 1980s. You also know AT&T was a juggernaut (even if you can't imagine the scale of "Ma Bell").
HP though? Nobody my age knows how great HP was in the '90s unless they're either a retro computing nerd, or an EE who knows the Agilent/Keysight lore.
The timeline makes it all the more surprising. HP's glory days were the 1990s! A decade after AT&T and IBM were clearly declining! Somehow the recency doesn't play in HP's favor.
They torched their reputation so quickly and so thoroughly that I can't think of any comparisons. As far as I know, the only companies who did it faster were fraudsters, the Enrons and FTXes of the world.