SUMMARY A workaround is to force "In/Active opacity" at 100 % in the Application specific settings A solution is in your hands :) STEPS TO REPRODUCE 1. Open zoom 2. Struggle to read the window 3. Cringe OBSERVED RESULT Transparent EXPECTED RESULT Opaque SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Reported as bug 429685.