"people always complain about UI changes at first and then they get used to it" i'm going to break into your house and put all your important stuff you use every day in random drawers and see how you like it. i'm gonna hide your phone in the towel cupboard. i'll put all your spoons in the fridge. all writing utensils are now stored under a floorboard that i've drawn a pencil on (in very light pencil so you can't actually see it)
if you want your software to be a part of users' everyday lives then it has to be reliable and predictable. you can't just change the entire shape of it on a whim no matter how much better you think it is. make small changes slowly or leave it the fuck alone. a UI overhaul is rarely a good idea because even if it really is "better" you are straining the fragile trust of your userbase by throwing them unexpectedly into HEY LEARN A NEW THING when it is fucking thursday or whatever and they are busy or maybe have an urgent message to send to someone. it's disrespectful. it's a breach of common decency. you shouldn't overhaul your entire UI on a whim any more than you should "deliver" a package by hucking it through an open window at the recipient's head. take the time to knock, or at least don't complain when they yell at you and throw stuff back.
