looks good so far 
EDIT 2020-08-04:
haven’t found any issues yet. RIL working fine, Cam (pic and video rec) working fine, audio works, screen lock works, fingerprint works, sync with /e/ is working fine as well. ah well and GPS is working good as well (just a quick test with the F-Droid app “GPSTest”)
Next thing will be be backporting the security patches to the kernel and making a current TWRP build.
GPS tested on my bike tour for 2 hours. worked fine.
EDIT 2020-08-05:
custom build + TWRP is online. Details can be found here: [CUSTOM BUILD][OREO] Samsung J5 2017 - SM-J530F (j5y17lte)