Sorry if this is a dumb question but I can’t manage to find an answer in the documentation. I’m self-hosting Matomo to have visitor stats for my 3 tiny toy sites (no SEO, no revenue, no nothing). I didn’t understand anything in the welcome page that recommends to install with Tag Manager, and I eventually configured my stuff at “All web sites/ Add a new website”. It’s working fine, but I have 4 sites when I only need 3, and the default Matomo one shows welcome page every time I enter.
Is it a special site that provides admin features of some kind, or it’s just a regular site I can remove without consequences?