rsync 3.2.3 compression algorithms: xxhash, zstd, lz4

[karawitan]

While trying to build latest rsync available, it turns out that some new compression algorithms are available in this version.
Do you know about the benefits / drawback / usefullness of these ?

checking whether to enable xxhash checksum support... no
checking whether to enable zstd compression... no
checking whether to enable LZ4 compression... no

Tell me if you feel it's a "must have" for the bb10 port, or what you think about disabling these ?

    --disable-xxhash
    --disable-zstd
    --disable-lz4