2021 Mazda3 Premium Issues

I love my Mazda ! It's just so far I've had the car for 4 months and driven 6500 miles. The issues that have occured thus far are as follows:Airbag system malfunction, In-network vehicle malfunction, Subwoofer is out of tune and rattles more than bumps (I think it's metal in the trunk, but it comes and goes. Very strange and extremely annoying on certain songs) Key fob barely works (battery low, but it's only been 4 months????) Window washer fluid (is the tank small? I'm already out, I don't use it excessively. I had a 2016 GTI before this for over a year and not once had to top off the fluid) Water gets in through both rear windows (wtf??? why?)

Meanwhile.. my mother purchased a 2021 Alfa Romeo Giulia Ti Sport in August of last year and it has been extremely reliable. No glitches, no issues, nothing. She's put 5000 miles on it so far.

I probably just got a bad example. I was just expecting to own something less glitchy than an Alfa lmao. Still a fun, comfy, and economic car though. Love it.

Anyone else experiencing issues like these with their 4th gen 3s?