Speaking from a third-world country, there are 2 main weaknesses the fediverse has for us:

• selfhosting is not easy or cheap for us, so we can only use what it's already there... And it's basically all in english, so most people are out.
• meta has everyone grabbed by the balls and people are happy like that (for some reason), anything new or different is met with endless excuses.

There used to be a mexican instance called Mujico, but they were forced to use a whitelist by constant troll attacks... But they also federated with grad so I can't feel bad about it. I don't know if it still exists but the last time I checked it had zero activity.