Not a fan boy perspective, just a user perspective. My suggestions are the way I choose to use MacOS, but others might not like them.
Suggest you simplify your Dock. I hate a busy Dock. Try using the 4 finger closing swipe on trackpad to bring up “Launchpad” view of all your apps rather than have ones you use infrequently on the dock.
Also consider enabling Hide and Magnification on Dock. You may not like it, but then again, you might. Frees up desktop real estate. Right click on a clear area of Dock to bring up options, or go to Preferences. I also get rid of Recent Apps and Downloads on the Dock. Again, a preference.
Unfortunately there is no overall Notifications OFF setting, Notifications require disabling each one on the Notifications Preference page. And don’t enable them when you install new apps.
Installing apps - Yup, it’s all what you’re used to. Dragging an app icon to the applications folder in an install screen is really easy and “intuitively obvious”. Too bad not all developers provide it. What you don’t see is the simplicity of copying an app .dmg file from a backup, and simply dropping it into the Applications folder. You’ve completely reinstalled the app when you do that in most cases. And deleting simple apps literally is delete it from the Applications folder. For more complex apps, there are Library folders to be deleted, but you can learn how to do that if you’re interested. There is a System level Library, under Macintosh HD on Finder sidebar, and there is a User level Library folder under your home directory, but this one is hidden until you press Option key / Go (on Finder menu bar). Most app files (if there are any) are in Applications Support in each of these Libraries. The interesting thing is if you delete these Library folders, the first time you open the app you installed in Applications folder, they get re-created, but you lose the data.
Exiting apps. Cmd Q quits an app. Easy to remember and learn to do. Searching for Quit under File is annoying. Just be careful which window is in focus when you Cmd Q.
Learning to use Mission Control is really useful. Four fingers on Trackpad, swipe up. You see all the windows opened on the page, but you also see a margin at the top showing all your pages. Move the curser to this margin, and it shows the actual pages. I usually create 4-5 pages. Simply swiping left and right on your current page with 3 fingers allows you to cycle through the pages. It’s a “poor persons” multiple monitors, and takes up no desk area. You can assign specific apps to specific windows, or you can have Mac organise as you work.
Leo’s solution for Windows file system is one way to go. Another is to use Parallels to run Windows as a VM and share files across Win and Mac. If you decide to do this, try using your existing Windows license key when you create the Win11 VM. Worked for me. If your VM is active, you get asked which OS to connect it to.
Really??? THANKS for sharing this. 
Hopefully works for Adobe.