I am not sure if this is correct. The consensus seems to be, there are a number of related bugs pertaining to ZFS raw send and receive. There seems to be a set of very special circumstances that trigger it. In fact, it’s so rare, that ZFS developers don’t have enough reports and dsta to reproduce and fix it. Moreover, those bugs have not led to data loss (someone may correct me if there are confirmed data loss reports among them).

Otherwise, software always has bugs that you can find their bulletins. Like I use restic and Borg and there are sometimes integrity errors. I have repositories in both with integrity errors in them.