The worst part of all this is the same old thing. The cards should work at default settings. You should not have to tinker to gain stability unless you are trying to use it outside supplied parameters such as undervolting, overclocking, etc....
Thanks however to the OP and others for sharing what works for you. It does help the struggling community.
Sad to say I'm pretty much in the same situation as you guys, had this gigabyte 5600xt for 3 weeks now and had nothing but crashes, my dota 2 profile is full of abandons because of the crashes. Replaced my 1070 with this which had 0 issues. If I'd only known this would happen I wouldn't have bought it. One thing is for sure though, once the quarantine ends I'll replace this with the 2060
bought pulse rx 5700 4 months ago, suddenly I started facing the black screen and random crashing issue. but because I was busy with studies I didn't care much since I barely used PC for long hours. since the covid-19 and the lockdown. it was the best opportunity to flex my muscles on the new GPU. the first thing i did was a complete cleanup with DDU and amdcleanup tool. even installed new windows. no matter what i faced random black screen issue after 30-3 hours of gaming or even watching movies. now I'm stuck with this mess and in countries like India, there's nay to return the cards. now i don't even have money to buy a new one nor there's any place to sell this mess. PLEASE DO NOT BUY RX 5700/XT. AMD COULDNT FIX THIS ISSUE IN OVER 6 MONTHS WHAT ARE THE CHANCES THEY'LL FIX IT NOW?
It`s not only RX 5700 etc, all AMD`s graphics cards are bad now. I have AMD ryzen 5 3400G and bluescreen/blackscreen etc everyday. Now I use version 20.3.1, but it doesn`t work.