Flipper Zero firmware differences

This document will (hopefully) maintain a list of differences between various forks of the Flipper Zero firmware.
If I had a dollar for every time I've seen this question asked, I wouldn't be in college debt. ¯\_(ツ)_/¯
Also consider checking out the Awesome Flipper Zero list, and my rant about the two types of Flipper users.

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Official

Official `flipperdevices/flipperzero-firmware`

Has region-locked Sub-GHz transmission because of legal limitations.
Has no ability to save and send rolling codes (dynamic encrypted) in Sub-GHz, only shows them in captured list.
Factory-set device name that shows everywhere (Bluetooth broadcast, USB connection, etc) that cannot be changed.

The Flipper team has a list of device names with their corresponding production information (No shipping address) so they can assist you easier in case of an RMA.

(AKA Code Grabber firmware.)
Very active development and Discord community.
Removes Sub-GHz regional transmission restrictions by default.
Allows Sub-GHz extended frequency range (i.e. restaurant pagers) through dangerous_settings file.
Adds extra Sub-GHz frequencies by default through Official setting_user file.
Adds extra Mifare classic keys.
Can be used to capture and send dynamic encrypted protocols/rolling codes. (Modern garage doors, etc.)
Encrypted Sub-GHz signals and codes can be added manually.
Current modified and new Sub-GHz protocols list can be found here.
Comes with proven-stable extra apps and plugins from the general community.
- More details and full list of changes can be found in their README.

Built off Unleashed as the base firmware (which is a fork of Official dev firmware.)
Removes Sub-GHz regional transmission restrictions after changes to extend_range.txt file.
Allows Sub-GHz extended frequency range (i.e. restaurant pagers) through extend_range.txt file.
Has Sub-GHz protocols and most of the other changes taken from Unleashed FW (see changes).
Adds extra custom assets (Mifare classic dict, example files, etc).
Includes some PRs from Official firmware that are not yet merged in Official firmware (bleeding edge).
Includes a number of games, some experimental only, as well as "Games Only Mode" (aka Dumb Mode).
Includes an enhanced, but experimental, new "Dolphin Level" system.
Has added most known community tweaks, plugins & games (some may be unstable or incomplete.)
Also includes a number of other small tweaks and changes.

Supports different keyboard layouts for Duckyscripts via the script keyword DUCKY_LANG
Up to date fork of the Unleashed firmware
Includes community plugins & games

The dev branch is intended for public use, while others are either testing or archived hackathon submissions.
Cracking T5577 RFID passwords via dictionary attack.
Desktop header branding [WTX].
Has some frequently updated interesting experimental stuff in different branches.

Staying up to date with upstream (official) firmware is important.
TX restriction removal is illegal in most circumstances, use at your own risk.
MuddledBox was the first popular firmware fork, but didn't grow up.
Unleashed is more focused on core functionality, stability, and Sub-GHz protocols.
RogueMaster has more community plugins, visual tweaks, games, and changes (some experimental).