I finally upgraded the operating system on my mobile phone. It’s a Pixel 2, which I bought cheap at the point that they were superseded by the Pixel 3, in 2019. It was thrown onto the end-of-life scrapheap by Google in late 2020, but it still worked fine, so I kept using it. I paid £55 for a battery replacement last year, which has kept it usable. However, using something that no longer receives software updates isn’t ideal, and the longer that went on the less comfortable I was.