Recommendations please.....

1. I have music purchased from Amazon and iTunes. Stupid me. But it is what it is. I can access both via apps on my phone. But on FireTV, I can only access Amazon purchases; I can't find a way to access iTunes. Is there a way? If not, it this an Amazon blocking move or an Apple opt-out move?

2. I need to buy a PC. Mainly for casual stuff. But also to do sensitive stuff - banking, investments, taxes and such. Should I buy a Mac (using a CPU that may be 2-3 generations old it seems) or a Windows PC using a current gen CPU). I don't really need features and performance per se; just need safety and reliability. And connect to 2 external monitors.

I don't know if this is what you are looking for, but I use a media center app called Audirvana. After installation, it searches for and locates all of your music(and I think videos also). You then log into your streaming service app inside of Audirvana where streaming and your music files become available to be accesses in one central media center. Audirvana also can take over your DAC so that the music being played is at the optimum settings for that file.

I run Audirvana on my Mac minis, and I control the minis with the iOS Audirvana remote app on my iPhone and iPad. However, I now have one mini connected to my 65" TV in my living room by HDMI so it is now the monitor for the mini. I sit in my recliner with my remote mouse and keyboard where I play my music directly from the app in addition to using the mini to do everything a computer does...just from the comfort of a recliner.

Also, let's say you run Audirvana from a laptop and you want the best sounding music from it. You can then pay around $300 for a USB-sized device from Audio Quest called a Dragonfly. I think there are three out right now, and they are designated by their color. The best out is the Dragonfly Cobalt, and the dragonfly symbol on it changes color to indicate the file type being played through it. The DAC in a laptop or a device like an iPad or iPhone won't allow for anything better than CD quality, but it you connect the Cobalt to the device, it allows for higher quality music files to be played to your external speakers. Let's say I have these hi res music files in my iTunes on my iPhone and I want to play them in my car through the lightning cable, I will only get CD quality. If I have the Dragonfly Cobalt connected, I will get hi res files to my vehicle's audio system.

If this isn't what you are looking for, good luck with your search.

FWIW, Audioquest has a $99 and a $199 DAC too.
I have both.
There is no real sound difference between the $300 Cobalt and the $200 Red but the Cobalt has some additional power for headphones.
I do think there is a big difference from black to Red but even the Black is pretty good.
YMMV

Also JRiver Software can import all ITunes and you can convert all of your audio files to other formats including FLAC which I recommend.

It was apple that was blocking it in the past.

As of 10/19 you can download the apple TV app to the Amazon fire and watch or listen to your itunes directly.

https://www.theverge.com/2019/...models-now-available

Thanks. I'll try that. I don't think I see for the Fire tablet (which is where I'd really like to have access). But I'll look again.