Thanks Vladimir for raising the issue, and Inada-san and Eric for following up on it.

I recommend the following:
- merge PR-23162 including its reference to builtin exceptions
- after merge of PR-23162, reworking PR-23160 to provide a brief note about __cause__ and __contex__ before the reference link to builtin exceptions

This would provide a clear tutorial example for the majority of users. For the fraction of users, like Vladimir, a sentence as part of the reference link could address a bit more about __cause__ and __context__ without confusing folks.