I guess if people are nerding out on lights in this subthread, maybe someone can recommend me a type or source for low-K (say, 2200K or something thereabout) bulbs with good CRI (yes, I know, but I can still notice a big difference at 2700. I don't know how low it will matter to me, but I want to see)

I've been using one of these 1700K bulbs [1] for a few years, and it produces a pleasant light. They also have a 2400K model [2].

[1] https://store.waveformlighting.com/products/superwarm-1700k-...

[2] https://store.waveformlighting.com/products/lux24-circadian-...