This is something I saw all the time. I’d look something up, knowing that there was probably an easy way to do <basic programming task> in modern c++ with one function call.

Find the stack overflow thread, answer from 10+ years ago. Not modern C++. New questions on the topic closed as duplicate. Occasionally the correct answer would be further down, not yet upvoted.

“Best practice” changes over time. I frequently saw wrong answers with install instructions that were outdated, commands that don’t function on newer OS version, etc etc.