By default, when you open a new tab, a new empty buffer will be created. This is a good default, but when I open a new tab, if I didn't specify any file, I want to access the Netrw.
You can do that piping commands. I mapped the command
:tabnew \| :Explore to
nnoremap <leader>nt :tabnew \| :Explore<CR>
See in action at asciinema