Are you running a beta? According to Adobe, the latest version is 10.2.152.33, the one I'm running. That Flash Player preference pane is absent from my system.

Jon

macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365