According to https://en.wikipedia.org/wiki/Fediverse:
The majority of Fediverse platforms are based on free and open-source software, and create connections between servers using the ActivityPub protocol. Some software still supports older federation protocols as well, such as OStatus, the Diaspora protocol and Zot. Diaspora* is the only actively developed software project classified under the original definition of Fediverse that does not support ActivityPub.[5][6]
You would have to look at those citations to see how authoritative they are. This may also still be open to interpretation?
Where we read “democracy”, they read “economic benefit” or “geopolitical benefit”. As far as I’m aware, any “democratic movement” that the US has ever supported has been either to get rid of a not sufficiently capitalist regime (whether or not they were democratic), or for some other geopolitical strategic reason.
I haven’t heard of a single example of the US supporting a democracy purely for democracy’s sake. Sometimes it just so happens that the goals of supporting democracy and getting rid of pesky regimes that pose an economic or strategic obstacle align.
Not to mention that the US has been involved in regime change of many democracies over the last 80 years because they weren’t sufficiently friendly to American companies or didn’t support American strategic goals strongly enough. This is open, well-documented history. The CIA admits to many of the ones which were done at least 50 years ago.
Here is a list to get started: https://en.wikipedia.org/wiki/United_States_involvement_in_regime_change