I've used a bunch of similar tooling like airdrop and localsend. I don't have alot faith in them a little since they usually choke on large files or many files. I'm still looking for something that works well in those cases without resorting to a cable / MTP which isn't fantastic either.

Once I tried Airdrop between Macbooks it was very flaky. Haven't had any problems with localsend so far (Windows, Linux, Android).

Webwormhole.io should work theoretically on file of any size because it does not keep the file being downloaded in memory/cache first. It downloads as a file as soon as it starts.

In practice, I have used syncthing to transfer many giga bytes data from one work computer to other because syncthing uses lot more discovery protocols etc to work around restrictions.

I can't report on percentage improvement, but after a long time localsend recently pushed out a version that claims to be much better (to be read as faster) for the transfer of large/many files.

For a long time the issue was blocked because of an upstream library, maybe LLMs finally unblocked the devs to push the fixes through.