This is a fun thought experiment.
Software.
1) Bug Hunting! Including going back to Monterey and fixing the SD card slots on ostensibly supported Macs. And this 14.4 update was unacceptable. Apple broke more than they fixed.
2) Either kill off Pages and Numbers and make Libreoffice the standard install, or at the least add ODF support to Pages and Numbers. (Never used keynote, so have no opinion on that.)
3) A formal support policy with at least two more years of security updates. You did notice that Ubuntu LTS was ten years and is now extended to 12, right?
3a) As an alternative, if Apple is going to abandon perfectly good hardware after seven years, then donate support to the Linux community so that they can have a fully functional Linux on Mx hardware by the time it drops off the supported list. No more advertising yourself as Green until you have a plan for the old machines other than dumping them in the third world for scrapping.
4) Better update management. A routine Linux update takes three or four minutes. Why does Apple's take 20 minutes?
5) Quit turning my Bluetooth back on with every update. Bluetooth is off on the iPad because I don't use it. Bluetooth is off on this MacBook Air because I use it very rarely for a mouse. If I want it on I'll turn it on.
6) Sidecar should work when an iPad is connected to a laptop (or desktop) with a cable without any need for either machine to be logged into an Apple Account, or to have bluetooth or for wifi to be turned on. (If Sidecar is supposed to always work with a direct cable connection then that is another bug to fix.)
7) Deletable useless (for me) apps. Facetime (especially on a mini) News, Home, Photobooth, Mission Control, Messages, Siri, Stickies... If I need them I'll download them again. Others undoubtedly have other apps they could toss without missing them.
Hardware.
1) Lack of ports has been a weak spot in the line up for some time. The Mac mini Pro has the minimum. The Mac Studio does have enough. This is mainly an issue with desktop machines which live to connect to things. Laptops are meant to be portable so it's not as big an issue for them, but even there having to dig for a dongle to connect something is a nuisance.
2) Add an NVME slot to the mini as a place for the Time Machine backup and infrequently used files.
3) 16 GB base RAM on any machine labeled "Pro". It should be on all of them, but I can see 8 GB on the low end laptops where battery life is the most important thing. (I'm only using 6 GB, and Libreoffice is open as well as Safari.)
4) Headphone jacks need to be on the iPads, at least on the non-Pro ones.
As for Phones and watches, I have no opinion. I have no use case for either. People who do use them do have opinions, so I would listen to them.
Similarly I haven't used iCloud since it made a mess of the tablet and two Macs at the same time. It's in the "This is wrong tool, never use this, very bad" group. Is it fixed? Can it be fixed? I don't know, it lost my trust.
Software.
1) Bug Hunting! Including going back to Monterey and fixing the SD card slots on ostensibly supported Macs. And this 14.4 update was unacceptable. Apple broke more than they fixed.
2) Either kill off Pages and Numbers and make Libreoffice the standard install, or at the least add ODF support to Pages and Numbers. (Never used keynote, so have no opinion on that.)
3) A formal support policy with at least two more years of security updates. You did notice that Ubuntu LTS was ten years and is now extended to 12, right?
3a) As an alternative, if Apple is going to abandon perfectly good hardware after seven years, then donate support to the Linux community so that they can have a fully functional Linux on Mx hardware by the time it drops off the supported list. No more advertising yourself as Green until you have a plan for the old machines other than dumping them in the third world for scrapping.
4) Better update management. A routine Linux update takes three or four minutes. Why does Apple's take 20 minutes?
5) Quit turning my Bluetooth back on with every update. Bluetooth is off on the iPad because I don't use it. Bluetooth is off on this MacBook Air because I use it very rarely for a mouse. If I want it on I'll turn it on.
6) Sidecar should work when an iPad is connected to a laptop (or desktop) with a cable without any need for either machine to be logged into an Apple Account, or to have bluetooth or for wifi to be turned on. (If Sidecar is supposed to always work with a direct cable connection then that is another bug to fix.)
7) Deletable useless (for me) apps. Facetime (especially on a mini) News, Home, Photobooth, Mission Control, Messages, Siri, Stickies... If I need them I'll download them again. Others undoubtedly have other apps they could toss without missing them.
Hardware.
1) Lack of ports has been a weak spot in the line up for some time. The Mac mini Pro has the minimum. The Mac Studio does have enough. This is mainly an issue with desktop machines which live to connect to things. Laptops are meant to be portable so it's not as big an issue for them, but even there having to dig for a dongle to connect something is a nuisance.
2) Add an NVME slot to the mini as a place for the Time Machine backup and infrequently used files.
3) 16 GB base RAM on any machine labeled "Pro". It should be on all of them, but I can see 8 GB on the low end laptops where battery life is the most important thing. (I'm only using 6 GB, and Libreoffice is open as well as Safari.)
4) Headphone jacks need to be on the iPads, at least on the non-Pro ones.
As for Phones and watches, I have no opinion. I have no use case for either. People who do use them do have opinions, so I would listen to them.
Similarly I haven't used iCloud since it made a mess of the tablet and two Macs at the same time. It's in the "This is wrong tool, never use this, very bad" group. Is it fixed? Can it be fixed? I don't know, it lost my trust.