The quality of AAC depends a lot on the encoder. The iPhone does it pretty well, Android not so much.
That’s what the audio nerds say, at least. Personally I can’t really hear a difference except when using the headphones with the microphone, when it reverts to some ancient codec with more noise than signal.
Also, battery life on the 7 series is pretty bad. My old 3a had awesome battery life, but since then Google started making their own SoC. They still use some third-party chips which they don’t control, and it’s affecting power efficiency. I’ve heard rumors that they’re expected to have better control of power consumption around the 9 series.
All that being said, I love my Pixel 7a, but I frequently have to top it off to last me a full day. I can handle that, but if you don’t have access to a charger during the day I’d consider other options.
That’s okay. You’re not the target demographic of every product.