For a large number of C++ users, it boils down to what it offers beyond C, but not to the extent WG21 is driving it since C++20.
Also the major surviving three compilers have lost wind on their sails as the corporations sponsoring their development have switched focus to other compiled languages.
Other than the whole security debate, there are no features that would make C++ significantly better for LLVM, GCC, CLR, V8, CUDA,.. improvements.
In fact, some of those projects still require C++17.
If this sounds strange, how many care nowadays about ISO Fortran 2023, or ISO COBOL 2023, despite the amount of software written in them powering many busisesses, or Python libraries even, e.g. SciPy.
Or even with C, almost 20 years later many still reach out to C99, ignoring everything else.