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When it comes to the idea of running a macOS application on iPad, I don't see the point because the iPad is a touch-first device, not a device designed for precise point and click. Just use a Mac, you get all of the multi-touch gestures at your fingertips on the trackpad and it is much more efficient to use multi-touch like that then raise your ape arms and smear your meaty fingers all over a screen every time you need to select a hit target. Mac app UIs also make no sense on smaller screen iPads as the hit targets are small and the screens on the smaller iPads are just not big enough.
I am looking for my wife. She is now retired, and came from a senior corporate lawyer/company secretary (ran the shareholders, all board meetings, AGMS etc etc) and what she is now doing. Most business people come from a Windows environment. People like my wife used Office all the time, with also some company apps now and then. She used table based screens at work, and at home or working out of office, she used an Elitebook x360. This is a convertible notebook which has a nice, coffee proof keyboard, alloy machined construction, Thunberbold 3 and other USB ports, a central pad and a touch screen. At home though, she uses an iPad Pro 10.5 for over 90 minutes a day. She is a technophobe - for instance I have bought her two sets of Apple ear pod Pros, and she hasn't used them. Last years are still un-opened. Their batteries are probably gone now. All the tech I've bought her like digital cameras etc etc she hasn't used. Except for the iPad, which she adores.
So her X360 needs replacing. She has tried Word on the iPad, and she cannot handle it. The file structure is too difficult to use. And it has less power too. And the keyboard I bought her for it (a Logitech unit) hardly connected and lost power too early, so she tried it a couple of times and then gave up.
So she loves the iPad. But she wants a full version of Word, with a file structure. Not available on IOS. She can use Word on a Mac though - but she hates it. Because there's no touch screen. Which she uses a lot of the time. She will actually site there making tables in word using her X360 keyboard and screen, with her 32 Dell Hi Res monitor turned off, and not use the full sized keyboard there with its fancy mouse. Simply because she requires a touch screen. I didn't take that seriously and should have bought her a smaller sized external monitor with a touch screen. At leas then she wouldn't have been bent over typing on her 13.4" X360 keyboard.
There's a heap of people like that. And Windows users laugh at MacBook owners because when they borrow a MacBook, they find there is no touch screen, and they think Apple is a joke.
And really, it is. I have lots of Apple gear - too much to get in the lists here. Max Phone, Ultra watch, Mac Pro, Powerbook Pro, bought a M3 Max 16" MacBook Pro, etc etc. But for my wife, I'm going to buy her a touch based quality PC. And I now think I'll get out my X Ifixit kit, and replace the iPad battery (Apple refuse to). Or get a 3rd party to put in a new battery. Or buy a new iPad, but out of annoyance with Apple, I might get a base model.
If Office had a file structure and provided the facilities of Windows (such as tables and indexes) then a 13" Pro iPad with a keyboard would have been a no brainer, or maybe the 11" with keyboard. But iOS file structure sucks. And I do realise that for many, Word is dead, and that my likes are those of the dinosaur. The trend for kids and youth is Google docs with shared editing. iPad with a keyboard is fine for that, and storage of docs is up to Google.
As far as running multiple monitors and FCP etc, yeh ... I reckon one would be crazy to do that on an iPad for editing at least. Serious users have lots of screens, storage and need fast exports. And anyway, it's cheaper on a mac. For the price of a 13" iPad pro & Apple keyboard, one can buy a similar speck 15" MacBook Air, and have a base iPad. Spend 100 bucks more and get a MacBook Pro with more RAM and an Ipad.
So while I've bought iPad Pros before, because IOS seems to be going nowhere worthwhile with its toy apps, I figure why reward a poor OS by buying the marvellous little iPad when one has to pay for the privilege. And one doesn't even get good battery life, for a product that is designed when operating not to be plugged in? Why" Because Apple marketing personnel wanted to advertise lightness. So stuff battery life. That's the biggest joke of all.
And a main reason I bought the Ultra watch was battery life. Same too with the iPhone Max. They are also products designed to be used un-plugged.