By A Mystery Man Writer
The 3rd-gen Fire TV Stick and the Fire TV Stick Lite have been rooted. XDA forum user k4y0z has posted instructions for how to root either device, which currently requires the Firestick be on Fire OS version 7.2.7.3 or older.
UNLOCK][ROOT][TWRP][UNBRICK] Fire TV Stick 4K (mantis), Page 111
כתב אהוב פשוטו כמשמעו twrp android tv box סימפוניה שבועה סחורה שונה
ROM][UNOFFICIAL][11] LineageOS 18.1 for Fire TV Stick Lite/3rd gen (sheldon/p)
How to install TWRP custom recovery and an initial ROM on a rooted Fire TV Stick 1
GitHub - kerta1n/tank-convert: Repo with everything you need (- the Lineage) to convert a 2nd gen Fire Stick to Lineage 12/Android 5.1 (clean Android TV!)
כתב אהוב פשוטו כמשמעו twrp android tv box סימפוניה שבועה סחורה שונה
root XDA Developers
Turn 's First TV Stick into an unofficial Android TV device with LineageOS 18.1 - Liliputing
How to Flash Custom ROMs on Android With TWRP
Rooting an Fire TV Stick 4K » Miguel Mota