1. That’s when u got ur GC, the rule of thumb for I-131 is for “emergency” travel.
2. Not renewed automatically. The moment u got approved u want to go back to US immediately
there’s no such thing as I-131 automatically approved
As LPR u need to be in US at least 183 days/year. If u wanna be citizen, u have to adere that rule. If u don’t want to be citizen, then u can stay longer outside US but no more than 1 year