I know you're asking about the Amara View vs the F30. While I don't yet have an F30, I believe my AirFit F20 is similar enough. I also have the Amara View, which until I was issued the F20 was in my estimation a very good mask. I suppose it still is good, but nowhere as good of a mask choice for me than the AirFit F20. To be clear, AifFit means it has silicone as the seal cushion. I also own 2 of the AirTouch memory foam cushions, which for me don't work as well as the silicone.
FWIW the Amara View seems to cover less facial area, and is quite capable of allowing the wearer to wear eyeglasses if so chosen while reading, watching TV or whatever prior to falling asleep. It was comfortable enough except the heavy feeling attached hose. And as much as I tried, I could never accomplish a good reliable seal like I can with my F20.
Now, as stipulated that I'm not directly commenting on the F30, and using my F20 experience as hopefully close enough for us here, I would say your nose irritation should LIKELY to be expected less if using an F30 or F20. I'm basing this in part due to design differences between these 2 masks. The F20 and F30 rest higher up towards one's nose bridge.
Also stipulated in my opinion on this is that you've chosen and/or have done both of the following: the strap adjustments are truly as they ought to be for best fit and leak stoppage and that the cushion is the proper size for you. No doubt you're likely aware of the fact any mask can be adjusted too loose or too tight for comfort and leak control. Many users make the mistake that leaks will cease if you just keep going tighter. Wrong in most cases. I myself fell for the tighter is better to control leaks fallacy; don't be surprised if you fell for it too.
Regardless that I cannot speak to F30's use and ownership, I hope what I mentioned helps. Best to your treatment successes.
PS welcome to AB