MacBook Pro bricked by macOS Catalina Security Update 2020-001

This issue has been going on for several years and there are reports for macOS 10.14 Mojave and 10.13 High Sierra. The update that brought the problem into my life was macOS Catalina Security Update 2020-001 and I am not alone. Round 1 ❌: Usual SMC and NVRAM resets did not help. Round 2 ❌:…