The profile picture of macOS Catalina is a lovely picture of Santa Catalina Island which changes depending on the time. Here’s how to Install macOS Catalina on Unsupported Mac. The DVD Player app will be located at this location even on Macs that don’t officially support the SuperDrive (though recall that you can make the SuperDrive work even on unsupported Macs if you need to).
To work around this, immediately relaunch the affected application after receiving the crash message.
Some third-party applications do not open or crash on launch This is an issue Apple introduced in 10.15.4, and is not an issue with the patch itself.