I really, really don't think this scenario is super common. Shitty, yes, definitely. But super common? Definitely not. You're talking about running GPGPU worklo

I really, really don't think this scenario is super common. Shitty, yes, definitely. But super common? Definitely not. You're talking about running GPGPU workloads on a budget, consumer-grade GPU that had a ~5-6 year old chipset when you purchased it. Yah, you can find other people complaining if you Google it, but realistically, how many people do you think this affected? It sounds like Nvidia was a much better option for you from the start, and I'm surprised anyone purchased a Polaris 10 AMD GPU for GPGPU in 2020. Conversely, I've had an RX580 that I purchased shortly after launch, and I've had zero issues with it. I've used it in a normal PC, a self-built Hackintosh and an eGPU enclosure that I use with my 2016 MBP in both Windows and macOS.