This isn't the problem though. The problem is they have completely pivoted in this other direction and are working on a new browser. It will only be a matter of time before they abandon Arc and then you won't get the security fixes, blink updates etc. It's also not currently OSS so it's not possible to fork it and continue elsewhere.
The fixes are really really minor. Larger functional bugs that aren’t catastrophic are hanging out.
That said, it’s been fine for me and I’m still using it. I don’t see any reason to abandon it yet. When the company fails maybe they’ll open source or sell it. I’d happily pay for this.
They have not shipped anything but browser updates and minor fixes for months.