I wouldn't categorize myself as agorophobic, as I DO enjoy my time spent outside as long as I'm not in crowds or socializing with more than a handful of people, but it definitely got worse after covid.
Home is where what little stuff I do have is, and there's nobody there that I dislike or dislikes me. Outside is increasingly hostile for humans with climate change, and the likelihood that I might get shot over my political stances because a neighbor thinks I might have different political views has never been higher.
So yeah, I don't go out as much either and covid was definitely the tipping point of "I don't go out much anymore"

I'm cool with people snitching on someone pouring greenhouse gasses into the atmosphere.