Not on sync yet. But if you goto lemmy.world in your browser and login in, you will have the option to create a community. It’s even easier to see the option if you switch to desktop mode.

If you haven’t left yet, I would recommend: wake up and it’s over - by Lovejoy

I don’t use an tablet so I don’t know how good it is but sync has tablet options in the settings. It isn’t FOSS though if you care about that.