Hi there,
1) If you upgraded from an older AW, do a factory reset on the AW and set it up from scratch (don’t restore from a backup.)
2) Go into the Watch app on your iPhone —> General —> make sure Automatic App Install is off.
3) Go into the Watch app on your iPhone —> General —> make sure Background App Refresh is off for irrelevant apps.
4) Go into the Watch app on your iPhone —> General —> Wake Screen —> make sure you have Wake Screen on Wrist Raise and Wake Screen on Crown Up are off.
5) Go into the Watch app on your iPhone —> Siri —> make sure Listen for Hey Siri and Raise to Speak are both off if you are not using Siri on your Apple Watch. You can always press the crown and say “Turn on the lights” or “Send a message to X”
6) If you typically have your iPhone on you, turn off cellular and see if that helps.
7) You can also uninstall all the irrelevant apps that are already installed on your AW by going into the Watch app on your iPhone, scrolling down to the section where it says “Installed on Apple Watch”, click on the name of the app and toggle “Show App on Apple Watch).
Good luck!