Emulating the actual OS (not just Java apps) is difficult because the firmware is encrypted and proprietary.
For the or Razr 5G :
RAZR emulators aim to replicate the look and feel of the original phone, including its user interface, menu system, and even sound effects. Some emulators go as far as to include additional features, such as support for modern apps, games, and social media integration. motorola razr emulator
firmware UI for modern resolutions. Unlike a simple wallpaper, these launchers include personalization options like classic clock layouts, screen savers, and themed menu icons. Emulating the actual OS (not just Java apps)
: Swipe down twice from the top of your screen. including its user interface