You can leak memory in Go, C#, and Java (all GC'ed languages) too. In fact, I've done it.

The real trick, in my experience, is to design your software with things like bounded queues or ring buffers, and to avoid manual memory management (new/delete). This works in C++ just as well as GC'ed languages.

One of my favorite consequences of LLM-heavy workflows (vibe-coding "make me a CRUD app"-style prompts aside) is that prompting the LLM forces the user to put at least a modicum of thought into how the software is actually architected.