On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Login Items on the right. (You may need to scroll down.) Add a login item: Click the Add button below the list of items, select a document, folder, app, server or other item, then click Add. Remove a login item: Select the name of the item you want to

Check System Settings With macOS 13 Ventura, you can find all applications set to start when you log in to System Settings, which you can open by clicking the Apple logo in the top-left

It is this App that then invokes the App Start up if there are incoming invites or Messages depending on app. In Messages this can be stopped in the General Section of the Preferences. The pic was originally posted fro an AppleScript thing but see the Arrow. This should stop all the Notification items and the app launching when you don't expect
The Startup folder is an easier way to manage apps. To add or remove an app from the Startup folder, you need to do the following: Press Win + R shortcut keys together and type the following into the Run box: shell:Startup. The text above is a special shell command which will open the Startup folder for you directly. In the PC app, go to Menu > Preferences > Show Advanced Settings > Startup and Window Behavior and turn this feature off. You can also stop Spotify from opening on startup by editing Windows startup programs. Press Ctrl+Shift+Esc to open Task Manager > choose the Startup tab > highlight Spotify on the list > and click Disable. Hold Command+R while your Mac powers on to boot into Recovery Mode. From the macOS Utilities window, open Disk Utility. Select your Macintosh HD from the sidebar and click Erase. Fill in a new name for your drive and confirm you want to Erase it. Quit Disk Utility and click Reinstall macOS from the Utilities window. . 743 291 385 110 369 322 954 362

mac opening apps on startup