I experience this as well, that's why I don't update my phone. Runs longer with less problems that way. I'm sure, it's riddled with viruses and trojans, but as long as it runs, I'm fine with it. Also, I don't buy new phones, I get one on the flea-market and that's fine. And I decided, that the next work/life phone will be a dumb phone and the smartphone will stay home for stuff like online-banking, telegram, whatsapp, and whatever. All this stuff around is overwhelming, and the nano/microplastics debate isn't helping as well.