Flash the magisk zip mentioned in the original post . There is a link to the magisk zip download in the install instructions. Download that zip, install it in twrp and reboot system. You will have root.
Hi mrjuniork,I take the liberty to try to answer your questions.
1) periodically wiping dalvik and cache is absolutely fine. Nothing wrong with doing it after dirty flashing an update. And if you are using inbuilt OTA (without magisk 21+) then you won't even need to worry about that either. Some data from old or uninstalled apps might remain in the cache, so wiping it from time to time isn't a problem. Boot will take a little longer, but that's it.
2) the inbuilt twrp is the latest one releases by mauronofrio (which fixed decryption issues)
So if you are not already on the latest twrp, you could flash it, make a nandroid backup and then update to the latest Pixen.
Reboot after installing or follow instructions from Telegram groupit says fixed oos cam support, but i installed from version 3+ till version 5+
version 4+ till 5+ all not working, black screen
version 3+ got ui (photo, video, portrait, settings etc..) but camera does not show anything, black
so, if u guys using oneplus camera, what version apk u guys using? or any gcam with a working video that supports 4k 60fps recording? the built-in gcam in pixen crashes while recording video.
After the OTA, you are rootless, coz twrp is being installed. So you either use magisk manager to flash or you boot to twrp, in order to flash magisk.
"Some features I WANT are missing". And based on that, OOS is better for you.
Pixen-OS is no longer updated and support is dropped btw. I suggest switching to another ROM if u want support and updates. Otherwise, by all means, carry on enjoying the ROM
OTA When an update is available, you’ll get prompt for it. From the Updater, Just Download it , Install and Reboot. * After download it just takes 15 minutes if encrypted and 10mins if decrypted all happening in *Background You can use your phone during this. As simple as that. If you are rooted, root will be retained. No worries. For flawless updates to work on decrypted system, make sure you are decrypted on both slots.