this looks like a project of one random guy who has now all of a sudden found themselves in charge of maintaining a super virally popular browser, after Arc Browser was left to die in maintenance. That star history on their github readme is insane.

This is to say, they are probably under a lot of pressure right now dealing with the responsibilities of a big browser, and do not necessarily have the manpower and knowledge to handle it all promptly. If you guys want this browser to succeed, consider helping the dude out, it is open source after all. I hope they can hire a team or something, maybe get a security focused person