NinjaTurtle

Guess code review and troubleshooting. Not really sure, I have only really used it for code templates and ideas for troubleshooting to look into.

The most use I found is rewriting documents in a specific way. But only after I write it first. Then go back and forth. Just to make tone consistent.

The way apple is now, you would only be able to print (wirelessly) through Apple products. And probably also DRM ink cartridges on a “security” basis.

Old Apple is not the same as current Apple.

Can also check out Nextcloud. Yes, its more overkill than just calendar and contact sync but its not that hard to set up and self-host. It has an interface for you to fix your calendar and contacts graphically and works well with DAVx5, if on Android. Believe you can just add the CalDav and CardDav for iOS, but have not tried it personally.

I think you’ll be OK but there will be a slightly learning curve since it is a different OS. As for documents make sure they work well with either LibreOffice or OnlyOffice, which should be available on other OSes. There are also always online office suites if needed.

If you have a spare flash drive, you can also test out Linux distros (flavors) before installing them in a live mode, like a demo.

Best of luck.