The following will add a “View author profile” link to the row actions (i.e., the links that appear when you hover over the username):
add_filter ('user_row_actions', 'add_view_author_page', 10, 2) ;
function
add_view_author_page ($actions, $user)
{
$href = esc_attr (get_author_posts_url ($user->ID)) ;
$actions['add_view_author_page'] = "<a href="https://wordpress.stackexchange.com/questions/259665/$href">View author page</a>" ;
return ($actions) ;
}
Edit:
Or if you prefer to have the link in column of the table, you could do:
add_filter ('manage_users_columns', 'users_columns') ;
add_filter ('manage_users_custom_column', 'users_custom_column', 10, 3) ;
function
users_columns ($cols)
{
$cols['author_page'] = 'Author page' ;
return ($cols) ;
}
function
users_custom_column ($default, $column_name, $user_id)
{
if ('author_page' == $column_name) {
$href = esc_attr (get_author_posts_url ($user_id)) ;
$default .= "<a href="https://wordpress.stackexchange.com/questions/259665/$href">View</a>" ;
}
return ($default) ;
}