[Samsung Galaxy Tab S8] Fevirre:
Since the developer decided to cut production of twrp for the tab s8 and screwed up the availability of flashing custom img roms there is now something called fastbootd

it's basically fastboot for dynamic samsung devices but with much more options to use

let's get started

What you need:

-the usb drivers for samsung and google, you'll see why later on

-fastbootd recovery patcher which you can get here https://xdaforums.com/t/patch-modif...mic-samsung-devices-twrp-alternative.4643956/

-Odin patched which is provided above too ^

-a pc, mainly windows

-a program that can extract lz4 file formats, i recommend 7zip lz4 (optional)

-the latest samsung rom from samfw

-a brain, i am not here to spoon feed people who go "where download link bro, help me flash rom bro" there are tutorials on google.

-A linux install on windows using WSL2

-adb platform tools

-unlocked bootloader

-dev options

-LineageOS GSI https://sourceforge.net/projects/andyyan-gsi/files/lineage-21-td//

Here we go, once you have everything go ahead and go to your rom and use 7zip to view the archive, you want to choose the section that starts with AP and extract vbmeta.img.lz4 and recovery.img.lz4 you can also extract the boot file too if you want to root your device later

FOR ROOT:

Download magisk or kitsune mask (magisk delta)

send the boot img from your rom to your device

open magisk and choose patch to file

select the boot file

let magisk flash it

once done send it back onto your pc

CONTINUED:

Go ahead and extract the zips you got from here: https://xdaforums.com/t/patch-modif...mic-samsung-devices-twrp-alternative.4643956/

drag and drop the vbmeta and recovery to the root of the recovery patcher

Now go to any linux distro you installed under WSL2 and do cd /mnt/driveletter/Users/USERNAMEHERE/Downloads/recovery-patch-path

replace the drive letter and usernamehere to your drive and username

then type in sudo su and put in your password

then type in chmod 777 patch.sh

then run patch.sh by typing bash patch.sh

Now go to odin and put your recovery patched file in AP and vbmeta in USERDATA

turn usb debugging on, turn off the device and hold VOL+ and VOL- while plugging in your charger into your pc to boot into download mode

your device should show up in odin under COM, go to the settings in odin and disable automatic reboot

flash the files and hold PWR and VOL- to turn off the device then hold PWR and VOL+ to boot into recovery

If that doesn't work the device will bootloop twice then prompt you to factory reset, do that then go through the device setup, then go to settings and tap the build number 7 times under about device in software and reenable USB debugging

Open adb and type in adb reboot recovery

This should open the recovery menu then navigate to boot to fastboot, you are now in fastbootd

type in fastboot devices to confirm your device is seen, if it's not go install the google usb drivers

and then type in fastboot -w this will wipe the userdata

and then fastboot flash system lineageromhere.img

and if you want to flash your boot img you can do

fastboot flash boot boot.img or you can flash the bootimg with odin either one

Now reboot and tadahh!! you have lineageos installed!