Also, in Terminal app (find it via Spotlight):

defaults write com.apple.Safari IncludeInternalDebugMenu 0

It looks like you have iOS Safari debugging turned on. Here’s the instructions I found from Apple to toggle it:

1. Open the Settings app.
2. Go to Safari.
3. Scroll down to Advanced.
4. Disable the Web Inspector toggle.

I found this info on this Apple developer documentation page: https://developer.apple.com/documentation/safari-developer-tools/inspecting-ios