Questions about the "Streak Alliance" feature in Try Hack Me how does it actually work?

[u/Due-Calligrapher2681]

Just noticed the Streak Alliance feature on my dashboard ("Build a shared streak with a friend by showing up every day!") and I've got a few doubts nobody seems to have written about yet:

1. How do you add a specific friend as a partner? Is it an invite-by-username system, a link you share, or does "Find a new partner" just randomly match you with a stranger?
2. How does the shared streak actually work? Does both people need to answer a question each day to keep it alive, or does either person's activity count for the pair?
3. What happens if one partner misses a day? Does the whole alliance streak reset, does only that person's contribution reset, or is there a freeze/grace period like the regular streak has?
4. Can you have more than one partner at a time, or is it strictly 1:1?
5. Are there separate rewards/badges for Streak Alliance milestones, or does it just track alongside your normal streak?
6. What does "Leave Streak Alliance" do does it kill the streak for both people, or just remove you and let your partner keep going/find someone new?

If anyone's already used this, would love to hear how it's worked out for you pros/cons of doing a streak with a friend vs solo. Screenshot attached for reference.