> its admins definitely have their own political slant, and if you're not comfortable with that (most aren't) it's best to find a different one or make your own instance.

From casual use alone this isn't clear to me can you explain?

The admins of the main instance have displayed a distinctly pro-authoritarian and anti-US stance. The pejorative for this ideology is "tankie" ( https://en.wikipedia.org/wiki/Tankie ).

Searching for that pejorative and Lemmy will find discussions about it with links (though not links to Lemmy itself since those sites are poorly indexed by Google).

This came most recently to visibility with the comments on an NPR article posted to Lemmy about China tightening access to Tiananmen square and Hong Kong detentions in /c/worldnews a week ago.