I think on my Samsung A51 there was maybe 5 preinstalled Samsung apps? And for some there's no good AOSP alternative like Music anyways. I ended up grabbing the Samsung e-mail client from the Samsung Store because it's halfway decent unlike the Gmail also pre-installed one which is crap for everything but Gmail. I kinda like OneUI and updates are faster than other phones like Motorola despite them using basically stock Android. And it was several hundred cheaper than a Pixel 4a or whatever was comparable at the time.