The Matrix Foundation now has some volunteer working groups, and a formal process for creating new ones;
https://matrix.org/foundation/working-groups/
For example, there's a WG for documenting moderation issues; reducing spam, easier handling of trolls, griefers and grifters.
If you're keen to get involved in keeping the Matrix protocol network fully decentralised, surveillance-free, and non-corporate, this could be a good way.
