I don't like it being HTTP based and TLS (certificate?), nor I am a fan of flutter and the other 70-ish dependencies (https://github.com/localsend/localsend/blob/main/app/pubspec.yaml).
KDEConnect is great and does way more than file sharing, I'll stick with that.
Damned, this is so frustrating when you cannot switch yet. Not like Wayland is perfect anyway but I felt the same with pipewire where the new system as some needed improvement but the switch is harsh.