It was initially called "LiveScript", but since Java applets were really popular at the time of its creation, they went with "JavaScript" instead to get attention.

Arc! I love it so much. Vertical tabs and spaces are game changers for me. Also little things like external links opening in a “little arc” window, certain links on the web not opening as full tabs, and having a hotkey to search from anywhere are such nice QoL improvements.

Wish it wasn’t a chromium browser, but the pros it provides in features far outweighs the cons of using chromium (for me).