I’ve been using iOS since 2013 or so, and even spent five or so years off-and-on developing for the platform.
I never use the multitasking stuff. Too confusing. I regard the loss of the single physical home button as a tragedy. One of the best UI elements ever created. Not joking. So simple, imposible to confuse because there’s just one, basically nothing about it that requires training, and it acted as the perfect “oh shit, get me back to something normal!” button for the tech-unsavvy, which is one of the things they most-need in a UI. So good.