New gadgets sales are down, is it any surprise why?

Its true. I bought a phone recently new in box that was released in 2021. I did it because it was a good price and gives me everything i need. Its perfectly fast enough, has enough storage, and has good connectivity and a good screen. I dont need the newest thing and i am absolutely not paying for a "cloud".

Any Android phones that are still decent? Somewhat repairable, sd card support, audio jack, and relatively easy to install a mature, non-Google firmware/os on, in the USA?

Pixel doesn't check those boxes. Fairphone does but who knows if they will commit to the US market... Also quite pricey.

I have a Moto G Stylus 2022, which checks some boxes and is cheap, and has little bloat, but isn't terribly repairable and cannot easily be fully degoogled, and doesn't really have a good alternative OS.