Apple should just rename Big Sur to Big Sour Apple OS. Pro tip: Years ago my tech friend (he's VERY tech savvy) told me to ALWAYS stay at least 3 (or at the very least 2) major software versions behind, regardless if it's operating systems, or simpler applications like Adobe Photoshop. And after 3 years, if the software is still not fixed, wait for the next major version. Still running macOS High Sierra 10.13 on my 2014 MacBook Pro. It's running fast and flawless, thanks to my tech friend's pro advice, which I will always keep following. This has in many ways saved me so much money and time.
So I assume you just upgraded to iOS 11 then. How are you finding it so far? Aww you’re disappointed with its performance? That sucks man... don’t worry, next year‘s iOS 12 will improve performance drastically. Too bad you can’t upgrade now because you’re following your VERY tech savvy friend’s advice.
Wait till you hear about iOS 14, it lets you add widgets to your home screen ?