Works as intended as far as I know. BlissLauncher was (years ago) to copy iOS behaviour, as far as I know. From what I know watching my favorite YouTuber, iOS is closer now to Android.
I would suggest you to install a different Launcher. The forum users have debated many times which one they like (there are several)
Yes, of course, but is not a feature of Bliss. Bliss shows you what Bliss means you should see.
This should be possible. But not on every screen. As far as I know you must take the left most screen for widgets.
I see you’re familiar with good and common features which are also typical and comfortable. If you want to have these again you should change your launcher. Try Lawnchair 2.