Xen is a concept made up by Jack Levin who is an ex-googler. Xen is totally free to mint crypto and anyone can connect their wallets and claim their portion of xen, but the % decrease for any new participants so if you are earlier it is better for you. You can mint how many you want on unlimited addresses and on all chains!

I have actually minted on 3 eth addresses, one bsc and 4 polygon.

When you mint you have to choose how many days you are gonna wait to claim tokens, there are max days that still increase because of the number of new addresses. The more days you choose, the more tokens you will earn.

this is mine mint on the first day of lunch on ETH

After mint you can stake, now it is 20% APR but it will decrease in time so you have to make your own strategy on how long you want mint then maybe stake on 20% APR or sell them to others.

If you want to learn more about Xen you should check their White paper.

On 7 days since Xenesis, XEN surpasses 1 million wallets as indicated by the Global Rank on the ethereum blockchain. - I think that's huge

Thanks for your time and have a nice day! ;)