Can I use Mighty Mouse's Multitouch feature with with iOS 13.4 On my iPad ?

You are mistaken.

A Magic Mouse model A1296 is an original, 1st gen Magic Mouse, NOT a Magic Mouse 2.

The Magic Mouse 2 is an A1657 model.

So, NO scrolling or gesture features for the original 1st gen Magic Mouse OR Magic Trackpad.

Sorry.

There are other ways to use the original Magic Mouse with your iPad.

Tap and see/read this post discussion here below.

iPadOS 13.4 Mouse Support - Apple Community

See Keith Doherty’3s response.

Best of Luck to You!

Are you sure you have a Magic Mouse 2?

The original 1st gen Apple Magic Mouse and Magic Trackpad do not supoort ANY scrolling or gesture features is iPadOS 13.4.

ONLY the 2nd gen versions of these Apple input devices do.

Works as a traditional two button mouse without a scroll wheel . The right side of the mouse can be customised in accessibility menus; And the primary button (left) can be set with a long press to mimic right click on hidden menus.

Combined with the screen blob (also customisable ) in Accessibility and a further feature little known Hot Corners found at the bottom of the assistive touch menu (customisable as well) you get a surprisingly functional experience.

Just the scrolling doesn’t work - Its click and either drag with a quick release under the inertia or click and hold on the on screen handles and pull in the desired direction

In some apps double clicking and holding will initiate screen zooming

Those that say it does nothing are plain wrong and haven’t looked beyond the basic pairing process.

As a small scale developer I have been playing with various mice for many months now including Microsoft ones with clicking scrolling wheels Logitech and the Lenovo Yoga . The last is actually rather nice imho

Repeated from elsewhere

That's a pretty old mouse. Is it Bluetooth? If it is, you can see if you can pair it.

I don't know. You'll need to reach out to Apple. The mouse was designed for Mac's, not iPad, so the multitouch functions just may not work with iPadOS 13.4

If it has a multitouch surface are you referring to the Magic Mouse 2, and NOT a much older Mighty Mouse with the tiny little cursor control button at the front of the mouse?

Then as long as your iPad is running iPadOS 13.4, you should be able to use the MM2.