Trying to find firmware update files - 2016 Impreza

I bought my Subaru Impreza in 2016 and it's been a decent car... except for the infotainment system. Terrible connectivity, slow, and album art and track times never display correctly.

I just realized that there may have been software updates to address those issues and after some digging I found instructions on how to install new firmware, but I can't find the actual software anywhere online.

The dealership is going to charge me $90 but I'm not happy paying that amount of money to fix something that was broken out of the gate.

So.... is there a place where I can find those files?