Ideas

Personally, I would add games and emulators from other platforms to increase the audience they can reach (e.g. pcsx2, add rooms).

Implement a chat system so that friends aren't just decorative on the platform and profiles where we can add the friends we have on Steam.

A big picture mode for those who want to be immersed in the platform.

Allow banners/profile photos to be resized.

It should be possible to add profile or decorative photos

That Hydra itself allows you to link Discord, if you wish, so that friends who add you on Hydra can see your Discord user to add you.

That people who are moderators or have an important role in Hydra appear in the launcher itself, so that we can define who are moderators and who are not. (?

That Hydra implements achievements, for example, "professional player": have more than 20 hours in 10 different games

"Friendly": add 10 friends

etc.