You won't ever have a common definition thereof, but looking at capital and human movement, a lot more people trust the US than Brazil with their money and lives.
Indeed, though the stuff the judge here is trying to deal with — regardless of any considerations of if they're doing the right thing, just the problem itself — is in part related to making Brazil safer to live in than it was itself previously.
One could reasonably also argue that the drop-off of advertising to X is itself a sign of lack of trust in Musk's decision making process, his rules, and his reliability.
(And he bought Twitter while claiming Twitter's rules were unfair; as you say, no common agreement).