Not so fast ;-) I have following working rock solid, under 75C and practically noiseless.
Asus B550i/5800x/3080 XC/Corsair SF600/Lumen S28/4x Arctic P14 pwm/pst.. plus 2x 4K LGs.
The 5800x is lightly undervolted using PBO2. Probably no need anyways, but I only have a 600W PSU...
I've front mounted the SF600, removed the powercage, kept the GPU support/vent.
I've replaced the Lumen's standard fans with the Arctic P14 (cheap, fluid bearing, lower power consumption), fans on inside, pull orientation. Topmounted the other P14s (push) . No deshroud on the RTX, but the fans simply never kick in (on Auto during stresstest)
Haven't gotten around to adding a 970evo in the 2nd M2... But it's the PCI3 and backup drive anyways so IMHO it'll do nicely without a heatsink.
Oh, btw, more confusion: a friend has a Louque Ghost S1. (240 AIO max). Nice quality.
HAGWE!