README.md slightly unclear, need further clarification for how to proceed.

The README.md reads as follows: Note: This requires a compiler with C++11 support (e.g. GCC >= 4.8). To use a compiler different than the default, use:

And then the installation steps are mentioned. I'm on Linux Mint 21.1 (Ubuntu 22.04 equivalent) with GCC 11.3.0. Do I need to still follow all of the installation steps? Would it be possible to use the default in-repo RISC-V GNU toolchain?

Sorry for the basic questions!