I find the default grid view that shows all your apps in watchOS 7 to be too cluttered. If you go, you can change it to the list view, in which apps are always arranged in alphabetical order. Here’s how:
On your Apple Watch, press the Digital Crown to go to the Home Screen.
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If the screen is in list view, open the Settings app on your Apple Watch, tap App View, then tap Grid View.Press the Digital Crown when you’re done.
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Or open the Apple Watch app on your iPhone, tap My Watch, tap App View, then tap Arrangement. Touch and hold an app icon, then drag it to a new location.