Every system has its own processes. If you want Apple software and services use Apple. If you want Linux use Linux. Do not expect either to be like the other especilly at such a micro level.

As far as Linux and beginner friendly, buy a device with Linux preinstalled just like you do with Apple. As far as user setting and apps. Get a notebook and write them down, and avoid deep customizations. As far as backup get 3 USB drives and backup your home directory with rsync or one of the other solutions. As far as restore, have install media and just reinstall from scratch then layer in your configs and apps and then restore your home directory files. For file sync and app sync functions, Nextcloud is helpful and you can pay for a commercial host, set it up yourself, or use a product like Synology. You frankly could use Dropbox, Proton Drive, or one of the others also. But think carefully what is actually needed. Cloud stuff is heavily promoted by the big providers presumably for lockin reasons and to mine your data but it is not really needed for most things. Get to know your distros builtin emergency startup tools and have a live distro like the live install media available and know how to use them.

Linux is about options but for simple beginner like processes it is best to stick to the basics.