[Magisk] oddcast:
Hello, thanks for the reply.

Oh. I didn't know that... quite odd that my first Magisk 17.1 stable installation made it show up.

I did; I toggled it on other root apps e.g. Titanium Backup, Kernel Adiutor, etc.

Here's the log after I updated to 17.3 Beta:

11-11 17:22:51.836 237 237 I Magisk : Magisk v17.3(17302) daemon started
11-11 17:22:51.851 241 241 I Magisk : Magisk v17.3(17302) logger started
11-11 17:22:51.852 237 238 I Magisk : ** post-fs-data mode running
11-11 17:22:51.852 237 238 I Magisk : * Mounting /data/adb/magisk.img
11-11 17:22:51.893 237 238 I Magisk : * Running post-fs-data.d scripts
11-11 17:22:51.893 237 238 I Magisk : * Running module post-fs-data scripts
11-11 17:22:51.893 237 238 I Magisk : * Loading modules
11-11 17:22:51.893 237 238 I Magisk : * Enabling systemless hosts file support
11-11 17:22:51.899 237 238 I Magisk : bind_mount: /system/etc/hosts
11-11 17:22:51.900 237 253 I Magisk : * Starting MagiskHide
11-11 17:22:51.900 237 253 I Magisk : hide_utils: Hiding sensitive props
11-11 17:22:51.900 237 253 I Magisk : hide_list: [com.google.android.gms.unstable]
11-11 17:22:51.913 237 253 I Magisk : hide_list: [com.google.android.instantapps.supervisor]
11-11 17:22:51.926 237 253 I Magisk : hide_list: [com.google.android.play.games]
11-11 17:22:51.940 237 253 I Magisk : hide_list: [com.google.android.gsf.login]
11-11 17:22:51.953 237 253 I Magisk : hide_list: [com.google.android.googlequicksearchbox]
11-11 17:22:51.968 237 253 I Magisk : hide_list: [com.landbank.mobilebanking]
11-11 17:22:51.982 237 253 I Magisk : hide_list: [com.google.android.partnersetup]
11-11 17:22:51.993 237 253 I Magisk : hide_list: [com.google.android.apps.plus]
11-11 17:22:52.004 237 253 I Magisk : hide_list: [com.grabtaxi.passenger]
11-11 17:22:52.015 237 253 I Magisk : hide_list: [com.lazada.android]
11-11 17:22:52.030 237 253 I Magisk : hide_list: [com.android.vending]
11-11 17:22:52.041 237 253 I Magisk : hide_list: [com.google.android.gms]
11-11 17:22:52.056 237 253 I Magisk : hide_list: [com.paymaya]
11-11 17:22:52.446 237 335 I Magisk : ** late_start service mode running
11-11 17:22:52.447 237 335 I Magisk : * Running service.d scripts
11-11 17:22:52.447 237 335 I Magisk : * Running module service scripts
11-11 17:23:35.494 237 253 I Magisk : proc_monitor: com.google.android.googlequicksearchbox:interactor
11-11 17:23:36.173 237 253 I Magisk : proc_monitor: com.google.android.gms
11-11 17:23:37.744 237 253 I Magisk : proc_monitor: com.google.android.googlequicksearchbox:search
11-11 17:23:39.082 237 253 I Magisk : proc_monitor: com.google.android.partnersetup
11-11 17:23:41.504 237 253 I Magisk : proc_monitor: com.android.vending
11-11 17:23:43.809 237 253 I Magisk : proc_monitor: com.google.android.gms:car
11-11 17:23:55.475 237 253 I Magisk : proc_monitor: com.google.android.partnersetup
11-11 17:23:56.637 237 253 I Magisk : proc_monitor: com.android.vending
11-11 17:23:57.028 237 253 I Magisk : proc_monitor: com.google.android.gms:car
11-11 17:24:03.877 237 253 I Magisk : proc_monitor: com.google.android.googlequicksearchbox:search
11-11 17:24:07.349 237 253 I Magisk : proc_monitor: com.google.android.gms.unstable
11-11 17:24:29.773 237 253 I Magisk : proc_monitor: com.google.android.apps.plus
11-11 17:24:30.676 237 253 I Magisk : proc_monitor: com.google.android.googlequicksearchbox:search
11-11 17:24:43.117 237 253 I Magisk : proc_monitor: com.android.vending
11-11 17:24:45.439 237 253 I Magisk : proc_monitor: com.google.android.gms:car
11-11 17:24:46.106 237 253 I Magisk : proc_monitor: com.google.android.apps.plus
11-11 17:24:46.769 237 253 I Magisk : proc_monitor: com.google.android.googlequicksearchbox:search
11-11 17:24:53.757 237 6821 I Magisk : hide_list add: [com.google.android.gsf]
11-11 17:24:54.021 237 253 I Magisk : proc_monitor: com.google.android.gms
11-11 17:28:56.531 237 253 I Magisk : proc_monitor: com.google.android.gms.unstable
11-11 17:29:08.148 237 253 I Magisk : proc_monitor: com.grabtaxi.passenger
11-11 17:33:05.230 237 253 I Magisk : proc_monitor: com.android.vending
11-11 17:33:05.779 237 253 I Magisk : proc_monitor: com.google.android.gms:car
11-11 19:24:06.905 237 253 I Magisk : proc_monitor: com.grabtaxi.passenger
11-11 19:25:43.491 237 253 I Magisk : proc_monitor: com.google.android.gms.unstable

I also don't have any modules installed, and AdAway seems to still modify the system partition despite of the systemless hosts setting in Magisk Manager. I currently have no idea why.