I remember chasing memory bugs in C# and Java projects at work. These are usually considered memory-safe languages yet their sophisticated garbage collectors are not panacea. There is a reason things like this https://docs.oracle.com/javase/8/docs/api/java/lang/ref/Weak... exist. Or why you might re-use existing objects in certain situations https://www.oreilly.com/library/view/java-performance-tuning... .

On the other hand, there are garbage collectors available for C and C++ programs (they are not part of their standard libraries so you have to choose whether you use them or not). C++ standard library has had smart pointers for some time, they existed in Boost library beforehand and RAII pattern is even older.

Don't put all the blame for memory bugs to languages. C and C++ programs are more prone to memory leaks than programs written in "memory-safe" languages but these are not safe from memory bugs either.

Disclaimer: I like C (plain C, not C++, though that's not that as bad as many people claim) and I hate soydevs.