Do you know how to boot your phone on TWRP from adb ?
if yes, you just have to do so and first thing fist : make a complete backup of your phone. this is called a nandroid backup.
it is preferable to do it once you recover a functional android, but it’s always good to have one at least.
You need the e-1.5-q-20221031230909-dev-starlte.zip file that could still be stored on your device, but in the /data/lineageos_updates folder (if you didn’t have deleted it in the past) that recovery-e cannot reach when TWRP can
It is the same process as installation (just don’t wipe or format anything : no factory-reset)
I guess I need to first install TWRP again, since recovery-e seems to be the current recovery on my device. Is this correct?
I never manually deleted the file, so I guess it should hopefully still be in said folder.
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uh oh… This could be a very likely problem… 
Dont know If I should even bother with the tedious installation of TWRP
one can boot a device on twrp even if another recovery is installed on this device … with a proper adb command.
ah interesting, can you tell me how I boot TWRP with adb commands?
Personnaly i can’t, but this guide could help,
one more time, don’t yet format the /data partition
my bad, samsung dont allow fastboot commands …
so the plan is to install TWRP again and try to find the old e-1.5 OS Version?
Just out of curiosity, what happens if I try to install the e-2.4.1-t Version, is this worth a shot or pointless?
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Have a try cost nothing to lose
A lot depends on the state of your backup.
If you are happy that you have a backup of essentials and can afford to loose the rest then a clean install is … well cleanest.
We reach the limit of the dirty upgrade here,
There must be some huge changes between Q and R that force us to format /data.
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