Switching to another Chromium-based browser is a half-measure. Other Chromium-based browsers are on borrowed time.
As time goes on, it will become more difficult for them to maintain v2 support. Nobody has the resources to properly maintain a browser fork with more than minor modifications. And you can bet Google will go out of their way to make this difficult for everybody else.
I mean, sure, use what you’re comfortable with if you really can’t use a non-Chromium-based browser for some reason. But it means you’re likely going to have to jump ship again sooner or later. Why not just jump once, to something with better long-term prospects?
Then again, the folks behind Arc Browser have expressed interest in becoming engine-agnostic, so perhaps there will be a Chromium-free Arc version in the future. That would be very cool.