However, having played up to the start of chapter 3 siding with the Tieflings, there is clearly a lot of content in chapter 2 (not to mention a merchant who provides several pieces of unique gear), specific to the Teiflings, as well as associated with the 2 origin companions that you lose, and I expect there will be significantly more in chapter 3.
I actually felt chapter3 mostly turned away from earlier characters, and while you can run into familiar faces they are hardly relevant. Some choices are retconed (like with the hag) most likely to cover more outcomes will less workload.
Did you actually tried evil path? I was hoping that perhas Goblins will provide alternative content to Tieflings.
I see BG3 evil path in a similar way a lot of other RPGs do it - it is nor narratively or roleplaying wise valid path - it is a detatched "see how much I can screw everything" path. I have been watching retrospective on Fallout3 and the critique of "blew up Megaton" choice - it is that kind of choice - big, nonesensical, something you have no incentive or reason to do, beside "I wonder if I can do it". In general I think choices and player freedom are done fairly poorly in BG3 - they are outstanding as far as production goes, a lot of content and a lot of variables, but I don't think they are done effectively or efficiently. To me it's an equivalent of having a hundered unappealing guns in a game vs 10 varied and well designed ones. It's appealing on surface level, but I am less and less impressed the more I discover.