Hmm, there are already a number of launchers in Fdroid, I've been experimenting with LaunchTime lately and I like the different approach it takes. What kind of customization are you interested in?
I feel the same, am able to fulfill all my needs exclusively from Fdroid. But I thought to ask since we all have different use cases. I've been following the project since it has only a handful of apps and am nowadays amazed by the variety of apps we have in our hands; a big kudos to all the devs for that!
Yet I still feel excited to check the 'What's New' section whenever I see an update, hoping to discover something new.