Afaik Zig has the issue that basically everything happens on the Discord server, where it can't be indexed via search engines, or found by anyone who wants to have a quick question answered. This would be "fine" if the standard library and language were much better documented, but it isn't, and it's still ripe with bugs.
In other words, you're forced to use the Zig Discord server if you want to find answers to any simple questions, and this is (sadly) not obvious at all to newcomers to the language.
This is true for Nim as well, in that most of the discussion is on the Discord/Matrix server. I’m not a fan personally, at least IRC was easily archived and searchable in practice.
I really dislike how Discord has become “forums in the 2020s”
In other words, you're forced to use the Zig Discord server if you want to find answers to any simple questions, and this is (sadly) not obvious at all to newcomers to the language.