https://support.office.com/article/upgrade-your-macos-to-access-new-office-365-for-mac-features-f6efc6b6-90f8-4e69-82dd-d0de32a111aa

There is some indication that Office for Mac 2019 will only support the latest current release of macOS plus the previous operating system. This is a formal request from an Enterprise admin to have Microsoft provide support for the current macOS operating system plus the two previous operating systems.

Apple has been absolutely horrendous in documenting and providing the appropriate management tools to deal with major restrictions they've been adding to macOS. This makes it much more difficult to deploy the latest macOS release on day 1. As an example, the majority of our users are still on macOS 10.12 and we are just getting to deploy macOS 10.13 (almost a year later). And that's not for lack of trying or testing.

Sometimes users want to use OTHER font combinations outside of the 10 or so built in MSFT only font combos. When I inquired about this, as usual, I was told "You can do that on the PC version". That's a A POOR EXCUSE. You've been developing PowerPoint for the Mac and the PC for OVER 20 YEARS - and you chage the same for Mac and PC versions, so there's NO EXCUSE for the Mac version of PowerPoint to do ANYTHING LESS than the PC version. There are DOZENS of MAJOR features missing from the Mac version. 20+ years is PLEANTY of time to make them the same.

The ability to set a default table style in a presentation is a major omission from PowerPoint. Currently when you insert a table it takes the formatting of one of the built-in table styles, which you can then change by choosing another one of the built-in styles.

Most brands require a specific format for their tables - e.g. a certain colour of header row, a certain style of borders, etc. It would be very helpful if these attributes could be baked into a template so that new tables automatically take on the correct styling.

Currently the only workaround for this is to include a sample table on a slide within the template, and ask users to copy that table and adapt for their data, or to manually make their table styling look the same – both of which of course are universally ignored because they require more work.

It is possible to set the default style of text boxes, shapes and lines, so default table styles is a completely logical addition.

Please allow the option to replace all instances of an image in a PP document.

Currently, if you have a deck that involves a single, repeated image amongst its slides, one must change each instance of the image manually.

Use cases:
• Using the morph transition, an image changes size/crop/position across the slides. Instead of tediously replaces every instance, this option would replace all at once.
• An image is placed on multiple slides throughout the document (some could even be hidden in the selection pane). You're not sure where all of them are, but the image must be updated. You can use the "change all" option to do it in one click.

Obviously this must also apply to vectors or "graphics" as you call them.

I have mocked up what it could look like here:
https://imgur.com/WVh1PM5
https://imgur.com/C7KuGra