Hello,

I just updated the Electrum version of macOS.

When I started it again, it asked me to create a new wallet. But when I clicked next it has immediately shown the wallet I had with the previous version 5min before that. It's great but it doesn't make sense and I love to understand (or instead, I HATE NOT to understand...... )

I don't understand where are stored the BTC locally? Or maybe they are not stored locally?

I saved the seed of the wallet. Is it really the only thing we need to restore a wallet in case of computer failure?
Only with Electrum or does it work with every software or online service?

Isn't there a file somewhere in my local macOS that is my wallet and that I can copy to a USB key?

If you have links to tutorials to help me understand how all this works. I would appreciate it because I understand NOT MUCH...... except that I need to keep the seed safe. I would feel safer storing my BTC on an online service but everyone says it's a bad idea... Right?

Thank you so much for your help <3

Alex Louis Morlevat