Server-side folks generate random identifiers and shared secrets all the time. Yes, it's niche, but not "extremely" and you don't use a crypto library for this (you use secure random!)
Generally speaking, I'd agree the need for a cryptographicly secure random is niche in that it is limited to the implementation of specific libraries/functions that despite being widely used, should NOT be frequently re-implemented.
require(‘crypto’).randomBytes(15).toString(‘base64’)
Ok, maybe you're not worried about that scale; but I normally recommend 256-bit IDs in order to make sure that you don't need to worry about that possibility.