I think we need to differentiate between printf style debugging and considered, comprehensive logging. Ideally logging with logging levels. While the latter might seem to fall under the same umbrella -- both are printing some sort of text artifact history of execution -- the latter is long-term and engineered, and the former is generally reactionary.

e.g. LOG(INFO_LEVEL, "Service startup") and printf("Here11") are completely different situations.

Indeed, the very submission is arguing for printf style debugging instead of logging. Like it uses it as the alternative.

Real-world projects should have logging. It should have configurable logging levels such that a failing project in the wild can be configured to a higher logging level and you can gather up a myriad of logs from a massive, heterogenous cross-runtimes and platforms project and trace through to figure out where things went awry. But that isn't print debugging or the subject of this discussion.