the frozen hashbrowns you get at kroger and walmart are, as far as i’ve heard, exactly the same supplier mcdonald’s uses. so yeah. i buy those myself and put them in the air fryer. i would say it’s on par with the mcdonald’s hashbrowns (and better due to less oil like you said) tho i do consider mcd’s hashbrowns to be nummy but not worth what they’re asking.