Use Ubuntu until you have a first-hand reason why you should use something else.
It's not perfect, but it's still the 800 lb gorilla, and it's what things have the least chance of not working with. It has the most eyes on it and the most immediate solutions when you google a problem.
If you don't like Gnome, then use Kubuntu.
I don't really grok products like this.
If you have a fundamental disagreement with a platform, continuing to engage with it, even through a condom, is still perpetuating it. It's maintaining that platform as still important and integral, and a place that others should continue to engage with. It's telling advertisers that it's still a place that's worth their money to maintain a presence on. It stymies the momentum in shifting to an alternative; why put the effort into a new service if people are still seeing your posts?
It's like pirating Windows instead of moving to a different OS. You're still perpetuating the MS hegemony and telling software developers that Windows is the platform they need to develop for.