You can't have a bounded queue that is always non-blocking because slow consumers can block producers.
You can't have a global FIFO order + multiple producers without slow producers blocking consumers.
You can't have a global FIFO order + have have non-atomic reserve and commit without a interrupted/de-scheduled producer thread being able to block the consumer
If you want atomic commit then you lose separate reserve which means either unbounded memory or atomic fixed-size data with sentinel values, ABA problems etc.
There are trade-offs everywhere, and it's best to pick the data structure that fits your needs just like any other problem.