I find this question a little weird, because open source software (which includes the Fediverse) was already a very political movement from the beginning.

As for organizing, since there is no main authority or philosophy beyond make software open, it’s up to you and like-minded individuals to use the space as you seem fit.

I remember this popping up in the pandemic, I read some really wholesome messages on there.

• LibRedirect Alternative open source frontends, very useful to survive on sites like Youtube, Twitter, Imgur etc.

• Voat - Reddit Comments on YouTube & Web Pages Not so useful any more, but you can read what Reddit communities have to say about websites

• Snowflake Fight cencorship

For focused work:

• Shenzhen IO
• Exapunks
• Opus Magnum
• Into the Breach
• Firewatch
• IXION

Other:

• Blue Archive Symphony
• 13 Sentinels: Aegis Rim Branched Remix
• Minecraft
• Stardew Valley
• Spelunky
• Helltaker
• Kirby