RaspEX
RaspEX is a perfect Linux ARM system for Raspberry Pi 5 and 4
...You can use Synaptic to install any extra packages you may need. RaspEX uses Ubuntu's 26.04 LTS software repositories so you can install thousands of extra packages if you want.
NEWS 260114
This RaspEX 64 bit Build for Rpi5/Rpi4 uses kernel 6.17.0-1003-raspi and Ubuntu 26.04 "Resolute Raccoon" repositories.
MOST IMPORTANT: In this RaspEX version you can run Netflix (and possibly also HBO, YouTube TV, Amazon Prime Video, etc.) using Firefox. I.e. there is DRM/Widevine support in Firefox.
NOTE: Ubuntu 26.04 LTS will be supported until April 2031. ...