I don’t think it’s fair to call it overstepping, nemo is part of the cinnamon desktop, other desktops have done worst eg: open all ports >1024.
The change has been reverted due to performance lost, the test I did yesterday showed it was 100 times slower.
That said the transfer speeds without sync aren’t reliable as it is written to cache.
Fixed package
https://bodhi.fedoraproject.org/updates/FEDORA-2024-4717e54d2b