Same here after many years of using it. In my opinion, and to try to keep the internet free, we should look into supporting LibreWolf (a Firefox fork) just like most people moved from OpenOffice to LibreOffice.
You think Google's politics are better than Mozilla's?
No, they're worse. I'm using Brave + DDG - I can't completely de-google-ify, but I can try.
My view is that using any Chrome derivative is still aiding and abetting Google. If Firefox really does die out and all we have left is Chrome derivatives, then yeah it seems like Brave would be the best option then, but that will be a sad day.