Amiga was 6-7 years ahead of its time, and did things that PCs couldn't, or only through software mimicking, even a decade later. It came out in 1985/6, and it was the first multimedia PC, something that did not exist as a concept yet. It had more powerful audio than anything on the market for years, and it had genlock which allowed it to match the framerate of whatever signal you passed through it, allowing it to do perfect video overlays.
It was used in the video sector for a long time even after Commodores demise.
It died for three reasons; 1. post-Tramiel, Commodore was run by idiots (except for one guy who did right and got booted for that out of jealousy), 2. the OS was rushed for launch and buggy as fuck, arguably it was extremely ambitious but could not deliver for that reason. They also weren't able to update it in time, nor distribute updates efficiently enough. It was easily a decade ahead of PCs when it worked, though. 3. PCs didn't get major technical advancements, they only became faster and faster and faster, to the point that they were capable of doing, with pure cpu muscle and a dumb framebuffer, what the Amiga did all in hardware. They also got sampling hardware with the Ultrasound. But this took half a decade.
Also the A500 ultimately ended up a problem, since devs had to write software that runs on that, instead of being able to embrace later, more advanced hardware.
Commodore also fucked up the hardware upgrades, and kept doing incremental chipset upgrades instead of revolutionary ones.>but it had shit games and no arcade ports
It was a multimedia production workhorse, not a weeb arcade machine.