I am new to Vue and I experiment with Vue 3 Composition API, which I created demo app and it works fine.
I installed Vue.js Devtools in Chrome, but when I open my site I can do nothing with it; it has a gray/disabled look and when I click on it, I get tooltip "Vue.js not detected", and in my Developer Tools I don't see any tab regarding Vue or whatsoever.
EDIT: I run some localhost app like "http://localhost:8998/#/home"
EDIT2: Which one? IDK, I just googled it and chose the one at the top with the best user rating, I add a capture