Yeah, it was down-ish a few hours ago. Wasn't just PSN, a lot of different online functions were having sporadic issues. Steam, TikTok, Airbnb. There was some major outage that affected them. Seems to be fixed now.
It affected mine in a very weird, sole app isolated way. Only my Youtube app on the PS5 wasn't acting right. First it logged me out and then, the app wouldn't even work at all anymore. Then, I deleted it and tried to redownload and the app wasn't even showing up in the store and the store was acting weird when it came to searching for any non-gaming media apps. Was all saying some DNS issue. My psn store mostly was unaffected tho.