Ask HN: How Does Arc Browser Make Money?

I'm curious. How does Arc Browser make money? I didn't see any “pricing” page on the website. Such an endeavor should not be fruitless.

Assuming it survives on investments. Why would an investor invest in something that doesn't generate revenue?

Is Arc Browser a social enterprise? However again, social enterprises also generate revenue for a purpose.

Does anyone have any information? What do you think?