I wanted to share a video and recent article on getting started with time travel debugging using the freely available 'rr' tool on Linux (Full disclosure, I'm the author :) ).
Debugging is the number one skill (from my conversations) I hear from employers that they wish new software engineers had more experience with. Anyway, here is my small part to introduce one of many debugging technique to beginners.
Direct link to C++ and rr debugging: https://undo.io/resources/gdb-watchpoint/time-travel-debuggi...
Note, time travel debugging/reverse debugging has been around for quite some time! Check out what time travel tools your language has on the wiki if C++ isn't your default language :)