DOS2 was a very well received game and many people recommended playing as an origin for a second playthrough, usually Fane or Lohse.
I have a feeling that one of these origins might end up the same way and I have a sneaky suspicion (without facts obviously) that the Dark Urge might be the recommendation for this game, judging particularly from what the developers themselves were saying about it. But judging from the early youtube videos it really does seem like a lot of people are very interested in this origin particularly.
Ok, true enough I don't have the numbers. But I'm also seeing how Larian is treating statistics and to be honest they show a questionable understanding of what the players are doing. Example we have seen 'spreading surface damage, increasing chances and effects that break concentration defacto heavily de-buffing crowd controll spells and then claming people prefer damage spells based on the usage'... but we also saw people complaining about evil path being badly written and therefore not being played and Larian claiming in the PFH that people want to be goodie-two-shoes.
Now you are saying people recommend playing as origin characters in DOS2 for a second playthrough - well, isn't the main critisim of that game that custom characters were neglected? So is it surprising that no one recommends using non origin characters? I've played the game, I wasn't a fan, but I won't claim its a bad one because that would be a stupid claim. Its up to personal taste, My main issue was gameplay and encounter design itself that I didn't enjoy at all.
Yet BG has its own player base, not just DOS2 players and I think we all saw what direction BG3 has been pulling when it came to 5e vs DOS2 mechanics. I would be very careful saying people want a DOS2 influenced BG3.