The unofficial ROM from @argon3030 were and are very good, because they show a serious advantage compared to the /e/ OS ‘P’ gts210vewifi (beta): @argon3030 isn’t only a ROM-builder but also a Tab S2 user himself. He checks the most important functions on his device to use it himself and before he shares it with us.
Many official /e/OS ROMs are generated on servers without the device itself being available to the ROM builder for testing. There is no other way to explain why, for example, eROMs are released that then don’t boot or only boot to a bootloop or have other serious bugs.
Nevertheless, it’s great that /e/ intends to continue supporting this gts210vewifi even though Lineage has discontinued support. Thanks to the T/e/am.