I would think most savvy web users do one of a couple things for websites they’d like to revisit or recover accidentally closed tabs. I doubt many of them would cite blindly adding a thumbnail to the otherwise beautiful home page for any website they visit.
If I have a site I visit often, I bookmark it so it’s convenient in the Bookmarks Bar.
If I inadvertently close a random site then need to return to it, I restore closed tab OR visit History.
What I NEVER want is for my browser to decide that I’m going to get bookmarks glomming up my home page with every site I sign in to whether I want it or not.
I would think this would also add headaches for the dev team. Looking through the forums, I see several people complaining that their private sessions are getting thumbs added. No bueno.
PLEASE give users the power to decide whether bookmarks get added to the Brave home page. This seems like a no-brainer option to me but it appears other threads on this issue simply don’t get responded to. Not sure why this would be so near-and-dear to Brave dev’s hearts.