GOOG-12-010900 - Android 12 devices must be configured to disable the use of third-party keyboards.
Many third-party keyboard applications are known to contain malware. SFR ID: FMT_SMF_EXT.1.1 #47
Configure the Google Android 12 device to disallow the use of third-party keyboards. On the EMM console: COBO and COPE: 1. Open 'Input methods'. 2. Tap 'Set input methods'. 3. Select only the approved keyboard. Additionally, Admins can configure application allowlists for Google Play that does not have any third-party keyboards for user installation.