I actually ended up making v2 of the ultra-bright light out of 3 7-way socket splitters and 21 100w-equivalent normal bulbs[1]. No fans needed, higher CRI and I got the bulbs during a 50% sale so was cheaper IIRC :)
[1]: https://www.homedepot.com/p/Cree-100W-Equivalent-Daylight-50...
I'm an older person nearing retirement, so my situation is different. But I can't help thinking that focussing on efficiency to this extent is detrimental. Jacques Ellul would say that "la technique" has taken over your life.
I found your post on ultra-bright interior lighting to be very interesting. I think I would go with two mega-bright lamps without fans than one giga-bright fan that needs one.