It was the Thicc 2 that had thermal issues. Supposedly, the Thicc 3 fixes those issues:
https://www.techpowerup.com/review/xfx-radeon-rx-5700-xt-thicc-iii-ultra/
Also, you have keep in mind that some people who still have thermal issues do dumb things like:
-getting a fancy glass front panel chassis with fans almost flush with said glass. Since the glass is transparent, airflow must be too...
-load up the chassis on LED fans with no regards to airflow or have just 1 or 2 fans.
-put a liquid cooler on the cpu, when a 200w+ gpu will easily pull more power than it in most cases
All that, and then complains about high gpu thermals...