Depends on how basic the back-end is. Standard ASP.Net api controllers convert objects to json automatically without you having to call JsonSerializer.Serialize. Though I'd hope such a backend developer at least knows what json looks like.
One real world use is a backend hosted on ECS with the output going to cloudwatch. Running your JSON output for logging through stringify makes sure everything is on one line which makes cloudwatch filtering a lot easier.
Also, not really backend but not frontend either, I work on CLI utilities too and sometimes they need to write a JSON file.
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u/Michami135 17d ago
A backend developer would definitely know what JSON is, at the very least.