This is an incomplete tutorial, Bisq already create their own tutorial and it's more completed than you [1].
Most of newbies are confused to use Bisq isn't because how it's hard to install and create the new account, but they're doesn't know how to get Bitcoin to fund his account. In your tutorial, you're not explain about it, so you're completely miss the most important point.
Few ways to fund his account is trade with user in this forum, through direct or other sites P2P, if he use his coin from centralized exchange, his privacy will be compromised.
Someone already create this guide before [2].
[1]
https://docs.bisq.network/getting-started.html[2]
https://bitcointalk.org/index.php?topic=5430964.msg61480963#msg61480963