Hello great project here and have already joined this amazing project

I just have 4 questions
1 - You say additional 20k coins needed to earn daily dividends on Buzzex does this mean 40k needed or 20k is all I need? A little confused from your words as on whitepaper it says only 20k is needed to earn daily dividends on Buzzex
2 - Also another confusion is you say "up to 80% of trading fees on Buzzex are sent back to people holding 20k or more BZX in their exchange wallet"
Why does it say up to? Does this mean it could be less than 80% shared? In whitepaper it says 80% will be shared total?
3 - What cryptocurrencies will dividends be paid in? Would it BTC, ETH, LTC?
4 - I can't find any documentation about how to install Linux wallet. Can you please share this in the OP thanks