yeah it's true that running as a web server it will be closer to a idle power consumption most of the time, the GPU won't be doing much
it wont have any peripherals, it will sit in a datacenter with its power cable and an ethernet cable only
that being said the 5B+ is even more interesting to me because i may be able to run RAID-1 m.2 SSDs for redundancy
if you're willing, i'd be very interested in the 5B idle consumption