[LG V30 ROMs, Kernels, Recoveries, & Other Developm] MerlinStWahgwaan:
SUCCESS!!! THANK YOU!!!!

Though, I would like too quickly post what happened, becuase I made a boo-boo and also had 1 small issue, but even with those, I managed too fix it all and basically no data loss, not even installed apps!!

Anyways, so im going too post in RED the comments I have on your instructions below, hopefully if someone else has the issue they find it, or read this before doing it....

Quoted From ChazzMatt;

""""""

Download US998 20e, 20f, 20g, 20h (you probably already have 20h) and make sure you have Magisk.

Done, made sure to download TWRP flashable files, and I made sure too get Magisk 18.1

In TWRP you can "stack" them all back to back. When you choose a zip file to flash, TWRP offers to let you add another, and another... That was you can stack them, and only start the flash process ONCE. Make sure you are using Magisk 18.0 or 18.1 when flashing these firmware TWRP-flashable zips. They don't like 19.x.

That was all good, BUT, I had an issue here; I also had Magisk set too a random package name, so I encountered a problem; after running the uninstaller and flashing Magisk 18.1, I did a restart too make sure it was successful, but I had 2 Magisk managers, and could not give apps SU permissions even though both said I has 18.1 installed. Anyways;

too over-come the issue I got the uninstaller for 18.1,

manually removed the random packaged named magisk manager, re ran the uninstaller, then reinstalled 18.1, it was all good-to-go from there basically.

After you flash all 4 back-to-back + Magisk, then TWRP will suggest you clear caches. Do it. Then reboot.

Done and perfect, flashed 20e 20f 20g 20h and M18.1 back-to-back cleared the caches then rebooted

Boot up, let the phone settle (breathe) for a few minutes. You've just flashed 4 updates back to back in less than a minute. After like 5 minutes, unlock the phone, see how it acts.

Was All Good, except, after the boot up, when i unlocked everything, it all looked ok,

but, I had two Issues at this point;

1. my Gallery and my Camera, they both lost the Icon Names... The Gallery got call "Adding..." and the Camera "Auto Mode"; They even show up as those name in System App Safe Remover Apps List, but the package names are correct :-/....?? I have no clue here,

but Nova Launcher lets me rename the Icon anyways so its not a huge deal, but still curious how too fix that if I can

2. After all this, I had no Magisk Manager Installed!!

So strange! I installed the 18.1 installed via TWRP as the last step, but there was no Magisk Manager in the Varrious Apps lists anywhere on the device.... So I had been prepared anyways, i also had the Magisk Manager apk ready too go, and I quickly installed that, and bing bang all good, opened up, showed Magisk 18.1 Installed and upto date Magisk Manager,

BUT, BUT BUT, I still could not seem too give apps SU permission.... I had too update Magisk too 19.3 and reboot BEFORE I was able too give SU authorizations again.... BUT NOW, its perfect, all working as far as I can tell, no issues thus far, reinstalled Busy Box already, working on other stuff and going for Anxious next, lol

If everything is good, MAKE A TWRP BACKUP! This is you golden point in time you may wish to go back to if something messes up in the future.

I have a question here, do TWRP backups save installed Magisk Modules?

After making the TWRP backup, then strongly consider installing this V30 Magisk mod:

[Magisk Module] AnxiousV30

Has kernel tweaking script, audio (dual speaker and HIM) and camera improvements among many other things.

Then at this point, if you wish to update to Magisk 19.x you probably can, but be aware you may have to temporarily downgrade back if you need to re-flash firmware TWRP flashable zips. It's an issue the devs are working on.

""""

Anyways, so yea, Ill report anything if I experience anything else, but yea, seems all good too go for now, just resetting everything back up and coping back photos and downloads from the internal memory back to their locations....

Just wanted to say THANK YOU again, to yourself for the help, and the Dev who made the flashablew files and the Magisk team, omg, your all freaking amazing, thank you!!!