Comment by thisishard

Here's another link about the problems with C++ exception that I find very insightful https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p25...

The major issue that stood out to me is that in a multi-threaded environment, exception unwinding is effectively single-threaded. This means that if you have C++ code that throws a lot of exceptions, you are going to see a lot of threads getting blocked by lock contention