Both the Zig standard library as well as several third party projects do check errors like this.
I already commented on Zig compiler/stdlib code itself, but here's Tigerbeetle and Bun, the two biggest(?) Zig codebases:
https://github.com/search?q=repo%3Atigerbeetle%2Ftigerbeetle...
https://github.com/search?q=repo%3Aoven-sh%2Fbun%20%22%3D%3D...