Only if there are multiple options. If there is 1 option, it does not. At least on my store. You can only really tell if it says

“Up to # MB” - flatpak

Or just " # MB" - deb

Hopefully it tells you if you are installing a deb or a flatpak app more clearly. I can only tell by the size in the current pop shop.

You either connect a mic via Bluetooth or wired headset.

From my experience, its overall good. Its basically stock android, meaning no google smart features and apps by default, with more control over apps and google services. But for caution, some apps may break. You will have to mess around with the app settings to fix them. Also some apps will not work such as the google wallet app due to the OS not being acknowledged as official by google.

In short, its a more security focused OS that may require more involvement in configuration.