Hey man,
You should start planning and moving to Android Enterprise now. Google deprecated Device Admin for enterprise use and pushed everyone toward Android Enterprise years ago; devices running Android 10+ will not accept many legacy Device Admin policies and newer Android releases only increase that restriction.
A few concrete facts to anchor this:
Google marked the Device Admin (legacy) APIs as deprecated and Android 10 blocked many legacy policies from working. That means policies like disabling the camera, enforcing some password rules, and certain keyguard controls will throw exceptions on newer Android builds.
Vendors and MDM providers have been announcing end of support windows and migration guides for some time; many customers saw vendor deadlines for Device Admin support, so it is not just a Google advisory, ecosystem timelines vary and you should check your vendor notices.
So what to do now? I would suggest you start your migration as early as possible. You can follow the guide below from Hexnode:
https://www.hexnode.com/mobile-device-management/help/android-enterprise-migration-guide/