I don't use any Mac products (OK I do have an iPhone but only because it was given to me) so my first suggestion is dump the iPad.  
Not being funny - I really dislike Mac products working with Windows.  They don't play well together and Access is strictly a Windows product.  Unlike Excel or Word that has been made somewhat compatible.

Alex is the Mac guru so I'll let him chime in - but mean while if you have same functionality to Windows Right-Click the sub-menu also has the Zoom on it.

You might have an onscreen keyboard that emulates the standard 101 keyboard.  Again I don't know for sure.

🌐
Globe key?

Hi Kevin, I want to use the zoom window while tying to enter data of a table in the Datasheet View but when I right click, there is no option to zoom.

Hi Alex, there is no option of Function Keys when I use the Globe key. I use the following apps to access a Windows Machine with an Ipad. https://apps.apple.com/us/app/shadow-app/id1446621967

Hendra -
Does this article help you at all?

IOS keyboard support

or Function Keys

There are lots of Google articles.  No way to test them myself.  Do some searching if those don't help.

I Searched: "How do I use the function keys on my iPad Magic Keyboard?"