You mean the "systemless" one from within Magisk, right? It works for me. It works on LOS and it also worked on the stock ROM in the past. Did you try the right SDK version? For example for my ROM (LOS 14.1) the right one is systemless SDK 25. I g...
Works! Thank you so much ;)
How to install Magisk directly on your new TB-8703F?
Flash TWRP (latest version, you can) via QFIL according to the thread procedure (in first page) until step 11
Instead of install SU, flash "Magisk-v16.0.zip"...
I've clean flash the rom and if I may describe MY last hour experience using the latest Remix Resurrection update : satisfied.
This new update rom works super smooth. No fc, no bug, no problem at all.
I use color os rom before, the latest one ...