I’ve created a modded APK for the RTD1296 based devices.

MKVToolNix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows.
https://mkvtoolnix.download/index.html
XMedia Recode can convert almost all known audio and video formats.
https://www.xmedia-recode.de/en/
Kodi is an award-winning free and open source (GPL) software media player and entertainment hub that can be installed on Linux, OSX, Windows, iOS, tvOS and Android. It is designed around a “10-foot user interface” for use with televisions and remote controls.
Users can play and view most videos, music, podcasts, games and other digital media files from local and network storage media and the internet.
https://kodi.tv
MediaInfo is a convenient unified display of the most relevant technical and tag data for video and audio files.
https://mediaarea.net/en/MediaInfo
Play any discs (including 4K UHD), local videos, and streaming videos. Organize your movie/music library.
https://www.dvdfab.cn/playerfab.htm
Last update: 2023-07-13
I’ve added Zidoo Z2600 and UHD5000 to the comparison sheet of the Zidoo Player specifications and updated Z9X Pro, Z20 Pro and Z2000 Pro. If you find something odd please leave a comment.
Z9X Pro
Z20 Pro
Z2000 Pro
Z2600
UHD5000