I purchased a Pixel 3a late December. Phone is superb EXCEPT that notifications across all apps both native and downloaded are delayed when the lock screen comes on. I get no sounds at all. Since I have a security system tied to doors, cameras and motion sensors, I need these things to work in real time as they have with every other smartphone I've owned.
Pixel is up to date on all system updates. The Google support team actually LOCKED my question on their online forum before anyone else could respond...interesting.