Bandwidth is very much a concern, I’ll think they of course have multiple 1Gb/s and 10Gb/s NICs however those can also be capped if too many people download the files at the same time. I’ve had a small file hosting service and it capped out my 1Gb/s connection pretty easily after a while. Had to upgrade on 10Gb NICs and it still overloaded them after a few weeks, now who is going to pay for that even if the bandwidth is unmetered.
That’s pretty small tbh did expect much more but I guess offloading content traffic to 3rd party does the most heavy lifting. Thanks for the insight!