How similar is an Oxy high to a Heroin high?

I’m only referring to the immediate release Oxy pills, I’ve never had the extended release and don’t plan to. I occasionally take a 35mg dose of Oxy cause it has incredible therapeutic benefits for me and even just doing it once or twice a month has greatly helped my depression and anxiety and given me a better perspective on life (yes I know weed and psychedelics can do that too but they make me very paranoid and yes I’ve tried indica and cbd strains and yes I’ve tried microdosing mushrooms and yes I’ve tried SSRIs and SNRIs those don’t work for me either) and it’s such a beautiful amazing feeling and I’m just curious if that’s what Heroin feels like or if it’s different cause I honestly can’t imagine a high from any drug that’s better than an Oxy high. So do I know what Heroin feels like from doing Oxy or is it totally different?