Depends on which language you're coming from. Compared to C or even C++, the Zig stdlib has already many more things to offer. Compared to Python or Node.js it's quite bare bones.
In my specific case I was trying to send some DNS messages. I went the route of linking libc and using the posix data structures for DNS messages and struggled quite a bit how to map the C data structures to my program.
This kind of thing is a big barrier to adoption unfortunately.