Argh, sorry to hear your going through the same thing..but it’s comforting to know I’m not the only one 😬 I spent hours with apple support online...doing updates through iTunes etc nothing worked. Apple told me to go to an Apple store and get them to run a diagnostics test...that it’s a hardware problem possibly! It’s bullshit my phone worked perfectly fine before this...I can unlock my phone..just can’t close or switch apps! So I decided to do a full restore and just deal with having to wait for everything to upload again from a backup..and guess what..still didn’t fuckjng work! The interim solution is to add the “home button” it’s a pain in the ***, but it’s a solution for now!! Surely we can’t be the only two people on the planet having identical issues!! Hope you haven’t ur phone yet...I was close