Wow, this is awful. Some people reported that these ads are also very petty and not necessarily related to the game, like apparently Elden Ring shows an ad for a licensed mousepad when you hover over the game now…
Edit: Playstation Product Manager says this is actually a new bug. I really doubt it but they do seem to be “fixing it”.
God, that’s awful. Is it connected to the Internet or are they internal ads? I suppose you’ve already looked into a piratefix firmware update or something? I have a big roku tv that i keep away from my wifi lest ads sneak into my experience too