Increasingly though daylight-frequency lightbulbs are becoming mainstream. Our house has them fitted everywhere, as does a new development of 100+ homes nearby.
I suppose that may affect sleep patterns in the short term but after several years of using exclusively 6500K lighting I don't have any problem falling asleep after turning-off the bedside lamp even though there's no graduated transition from 'blue' light to darkness.
It's not pseudo-science, and I'm not even sure why you said that. There's quite a bit of literature at this point demonstrating that the suprachiasmatic nucleus (the primary timekeeper of the body) is heavily entrained by specialized retinal ganglion cells (ipRGCs), that are most sensitive to blue wavelengths.
Here's a publicly-accessible review paper if you wish to learn more: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254760/#BX1