/k/ is full of pro-Ukraine glowies so maybe try that board first.
Otherwise it's more balanced. /pol/ has both /uhg/ (Ukrainian Happening General; mostly pro Ukraine) and /chug/ (Comfy Happening in Ukraine General; pro Russian).
/chug/ as its name implies is more comfy and has anime girls. /uhg/ is quite nasty and mostly posts gore of Russian soldiers.
In a way its hilarious that you're proving OPs point that state actors are influencing the board. It's also interesting that you're not denying that russia/china is influencing 4chan. You're just saying that america does it as well.
Otherwise it's more balanced. /pol/ has both /uhg/ (Ukrainian Happening General; mostly pro Ukraine) and /chug/ (Comfy Happening in Ukraine General; pro Russian). /chug/ as its name implies is more comfy and has anime girls. /uhg/ is quite nasty and mostly posts gore of Russian soldiers.