Of course they are. Its literally their intelligence agencies job to destabilize countries whom they benefit from being destabilized. I guess we better hope it's a landslide one way or the other then.
An intelligence agency is something that any developed country will come up with, and even some still rather undeveloped ones. However, in many small countries the national intelligence agency is pretty much limited to keeping tabs on who is going into or out of the country, maybe doing some light industrial espionage, or (in the worst case) cracking down on the democratic aspirations of their own citizens. They aren’t projecting covert power abroad, because there simply isn't the budget, political support, or manpower to destablize foreign countries.
Which is rather interesting as there is a close alignment between the goals of Brazilian and American administrations. By supporting the current Brazilian government, the current US administration is supporting its own president's reelection.
As a side note, it was the previous administration that condoned and supported the coup that ousted the left-leaning government. Fun this always happens before Brazil (or Chile, or Argentina, or anyone else) can become a regional power.
That’s why it feels like all of this is Russia as they seem disconnected enough that they don’t care.
Literally any country that stands to lose if the US has more time to look externally. Look at every issue we are involved in. Everyone on side of an issue that we're on the other side of stands to benefit if we spend more time on internal issues. Of course you have Russia, China, Iran, etc. but there's tons of countries who have neighbors they don't like who we are helping who would rather we not. They're all gonna buy a few hundred Facebook ads or whatever.
Worded like that, yes.
But purely anecdotally, having had the chance to visit 35 countries, and having talked to a lot of people about world issues, I've seen nothing but good will and friendliness towards the American people for the most part. In fact, I very regularly get words of encouragement from regular folks in other countries who feel pity for us and wish we'd be "back to normal" (not debating the merits of that statement here).
It's hard to overstate how deeply influential and strong is American culture in other countries, and the sense of friendship that that has forged over decades, even if it's not always reciprocated.