The AddonSU isn't specific to the Galaxy S5... LMAO!
I just stated that device because I had created it to test out on my other S5 and was just sharing it for others to test out with their device.
I had grabbed the files for the AddonSU from the LineageOS 16.0 channel and compiled them as a Beta Test Version (as well as the uninstaller too) and I haven't tested it yet.
It should work for any ARM device on LineageOS 16.0 (untested of course).
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UNLESS asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my SM-G900T device.