What kind of iffy politics? Only thing of what I see coming from his channel that could be considered political is complaining about government surveillance which is problematic for many regardless of whether they're right or left. Other than that it's not like politics are a talking point on his channel.
Back in the day you could get the one month free trial on repeat just using burner emails, they didn't attach it to any payment info. I'm actually amazed at how long they overlooked that for, but I had free prime for like a year cause of it.
That is not a far-fetched future prediction. But as of now, Brave works just fine. No reason to stop using it now from what might happen. If SHTF, I'll simply download something else.
Me too, since their adblock is natively implemented it won't be affected by manifest V3.