I've been using Windows 11 for over a year, including Copilot, and haven't noticed any significant or annoying change. I personally like the taskbar to be clear of app icons and search space, and Windows lets me tweak pretty much everything I want so I did that and it worked just fine. My 18 favorite/usual apps, including Copilot, are all easily accessible in the Start window menu and Windows hasn't moved anything around in that regard, as far as I'm concerned. Same experience with 10 and previous versions.
Unlike macOS, Windows is very versatile: don't hesitate to change and move things to your liking. When you first use the OS, if you don't like the default presentation (say, grouped and centered icons in the taskbar), just change it. That's the first thing I did when I switched from 10 to 11. Copilot? The way you access it sounds complicated. Just remove it from the taskbar, add it to your Start menu's favorites, and it'll always show up there. In my opinion, it's also easier to use the mouse than remember keycodes (Win+C, Alt+Space, etc.).