Is there any orbit other than GEO that would make CDNs in space useful?

While current Starlink don't have lasers that could reach up to higher
orbits, maybe a subsequent generation could have such a thing.  Maybe there
could even be a standard which OneWeb/StarLink/??? could all agree to, and
CDN satellites (with bigger solar panels and longer service lifetimes) could
be built to.

Having said all of this, it sure seems that the better place today for CDNs
is within satellite serviced villages.    Some may even remember the Internet
Cache Protocol (ICP), which never really got anywhere (RFC2186).

There are perhaps energy arguments for moving datacenters to space, but stuff
just isn't reliable enough, and I'm sure it's a fail until you manufacture in
space.