It took a while but here you go, /e/OS-T-1.16 for the S20 (x1s)
e-1.16-t-20231021-UNOFFICIAL-x1s.zip
https://www.androidfilehost.com/?fid=16385555061192787602
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Hi. Is this b ased on Android 13? Is it a GSI Image? Any tutorial how to flash this?
Thanks.
Yes A13 (eOS-T). No GSI. I don’t have any tutorial-sorry. I can only share the sources:
https://github.com/fcuzzocrea?tab=repositories
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hi @pintas, welcome to this forum.
follow this instructions :
https://xdaforums.com/t/recovery-official-3-6-1-x-twrp-for-galaxy-s20-s20-s20-ultra-exynos.4441701/
to unlock the device, and flash a “custom-recovery-manager” even if you prefer to replace TWRP by the “recovery-e” included in the .ZIP.
also :
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Thank you! I’ll try with ‘recovery-e’. I did not have any success with twrp. I managed to install TWRP and to flash e/OS but it keeps rebooting.
There is also a Telegram group availabe for Samsung Exynos chipsets questions. Exynoobs
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I’m there! I posted the link to this forum there a few days ago 
Found some install instructions:
https://xdaforums.com/t/lineage-os-20-unofficial-for-sm-g981b.4625711/
Any feedback?
Update for /e/OS-T 1.20:
e-1.20-t-20240223-UNOFFICIAL-x1s.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-1.20-t-20240223-UNOFFICIAL-x1s.zip/download