Just a recommendation, but learn Rust first. Once you have a good intuition about mutability xor aliasing (which is what the borrow checker enforces), you'll actually write better C and C++ code should you need to.

Personally, I think Rust is the future of systems programming and there's no more reason to learn C / C++ than there is a reason to learn FORTRAN or COBOL (specifically, the reason is only ever "I need to get a job using those languages"). But, you know, feel free to take that with a grain of salt and see for yourself.

Rust isn't going anywhere any time soon given how many big companies use it, so even if you learn C/C++ first, you'll likely need to learn rust as well eventually if you want to do systems stuff.