Quote from project FAQ:

> Gemini has no support for caching, compression, or resumption of interrupted downloads. As such, it's not very well suited to distributing large files, for values of "large" which depend upon the speed and reliability of your network connection.

https://gemini.circumlunar.space/docs/faq.html

Download managers that speed up downloads use this feature. I.e. they use 2 threads, 1 download from the beginning and the other continueing from the middle of the file. This fools single connection throttling measures.

I suspect that it is this partial download that they are talking about.

That said, I can't tell whether or not I've used it recently. I know I don't use it when I play with personal projects, but I don't know what other sites do because I rarely have a console pulled up in my browser when I'm just using it, rather than developing.

Its often used with bulk file downloads (e.g. curl a multi-gb file while transfering between wifi networks), as well as video streaming sometimes (buffering)