second question: since i'm syincing my blockchain on a windows device what will i have to do to migrate it on a linux OS?
i guess that i will have to move that "blockchain" folder in the /home/.bitcoin/bitcoin folder can you confirm?
Take a look at this.
All you need are the blocks and the chainstate folders.
It is advisable to have the same Bitcoin Core version because sometimes database formats will change between major versions...
I hope that helps.