Comparison
ExcaliRec vs OBS and Loom for how to record Excalidraw
OBS is powerful if you need scenes, overlays, multiple sources, or streaming. It is also more setup than most Excalidraw explainers need. Loom is fast for async screen messages, but it is still a general screen recorder. You usually need to arrange windows, crop the browser, and accept whatever framing the desktop gives you.
ExcaliRec is lighter because the whiteboard and recorder live in the browser. There is no desktop install, no capture-source setup, and less chance that browser tabs, notifications, or window chrome become part of the clip. For people looking for an Excalidraw screen recorder rather than a full production tool, that narrower workflow is the point.