I have a couple of questions about Ghost Pro

Hi.

Although I could potentially do some self-hosting of Ghost I went for the managed Ghost Pro option on Ghost.org

I notice every time I’m trying to share a URL/href to go to another website/url it’s adding a ref=mydomain.etc onto the URL which is causing issues for certain sites. Any way of turning that off?

Second question semi related but what is the recommended way to link to say a Mastodon profile using Ghost?
Thanks