Does L4T 32.7.1 supports C++20 or can we install supported GCC in R32.7.1

The L4T 32.7.1 contains GCC 7.5.0.
Looks like C++20 support is added after GCC 8 and in GCC 10

Can we get C++20 support in L4T 32.7.1
Can we install GCC 8 or 10 in L4T 32.7.1 ?