But that's exactly the thing: those weren't necessarily driver bugs - it was clearly a more complex issue than that, seeing how dependent issues were on system configurations, specific hardware components, etc. - and how the RX 5700, 5600 XT and 5500 XT lacked the same issues.
So, first off, you know that AMD has released quite a few generations of GPUs in the past decade, right? You're making it sound like there have been two, RDNA and RDNA2, and one of those had issues. This is what we adults call a false equivalency.
Second, RDNA did not have driver issues. The RX 5700 XT had a complex set of issues that no doubt involved drivers, but was far more complex than a simple driver bug - if it was a driver bug and nothing else, it would have been fixed long ago. The best answer to what that issue was seems to be some weird interactions between specific models of hardware, drivers, firmware, and more. Remember, there are tons of reports of the same GPU being moved to a new PC, running the exact same OS, drivers and software, and having zero issues. Also, other RDNA1 GPUs than the RX 5700 XT had far fewer issues. That also doesn't mean that the same issues weren't seen at all outside of the RX 5700 XT, but they were far more rare, indicating that there was something about either the hardware, firmware, or both of the RX 5700 XT that caused these issues. And, crucially, that's not a driver bug. It's still not acceptable - IMO everyone experiencing this issue should have been offered a refund - but it's not a driver issue, nor is the failure to entirely remedy the issue the fault of AMD's driver team.
Also, where are you having to downgrade? I haven't downgraded a GPU driver since my Fury X. And that's across that Fury X, an RX 570, an RX 6900 XT and just recently an RX 6600. Saying AMD drivers are shit is just FUD. It's nonsense. They're absolutely not perfect, but they are perfectly fine. And if by 'Adrenalie' you mean what used to be called Radeon Software (now AMD Software, IIRC), once again: what you're saying doesn't line up with my experiences whatsoever. You might have had issues - but then there are people who have had persistent black screen bug issues with Nvidia drivers - for years! - too. Bugs happen. Bad luck happens. Having a bad experience doesn't mean your experience is universal - just like having a good experience doesn't mean that either. The truth is, as always, somewhere in between. But what you're saying here is just nonsense.