A little clarification, which I put together from a yesterday’s DC group chat:
DeltaTouch was originally made for ubports and lomiri devices, but since it’s now on Flathub, it should work on any x64 or arm64 Linux distributions that can run flatpaks, including Linux phones and Linux desktops.
It works even without touchscreen, with usual mouse only.
Seems like it uses way less resources, especially RAM (comparing to DC Electron desktop app).
UI can be a little more unpolished, and sometimes it likes to freeze-lag slightly.
Original DC desktop is more consistent and doesn’t really freeze, but also is more overall laggy. However, the minor hiccups are probably extremely fixable.