Is there a offical FAQ that has a lot more questions than the ones found in the back of the rule book ?

Go here: https://www.fantasyflightgames.com/en/products/keyforge/

Look at the bottom of the page under 'rules' and you will find a copy of the core rules that was updated Jan 2019, this contains the most recent rules updates, clarifications and errata.

The link shared by UberMunchkin has the most recent FAQ, but I would hazard a guess that you've already seen that one.

There isn't another official FAQ to be found. Word on the street is that Brad Andres is very responsive in a Keyforge group on FaceBook, and I believe the Keyforge Compendium website has rounded up almost all of these unofficial answers. If you can't find what you're looking for there feel free to ask here. We will happily bang our collective heads together. It won't be an official answer but sometimes having a different perspective can be helpful.

I'll second Keyforge Compendium's FAQ . They've done a really good job combing through various responses as well as the official rule book to make a pretty comprehensive list. Where there is a source aside from the rulebook or card text, they list it and provide a link.

Thanks guys