Automating Arc Browser

Has anyone had success automating Arc browser with either Keyboard Maestro or BetterTouchTool (or even Shortcuts)? I have some Keyboard Maestro automation to search for selected text on different websites that currently use Chrome. However, I’ve switched to Arc as my default browser and would like to use it instead. Arc doesn’t respond to the built-in “front browser” command in KM. Instead, KM launches Safari.

If you use Little Arc bound to a hotkey you can trigger that with KM. If you don’t, maybe set up an obscure keyboard shortcut and use that?