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#21
Restore points and system imaging (native or 3rd party like Macrium) aren't the same. "Native" in this context means "included as standard in Windows operating system" so you don't have to buy or install anything. "3rd party" means not made by Microsoft so you have to download and install (and possibly pay for) someone else's program.
A system image saves everything so you can restore and everything will be back to how it was including all your files and documents. For example if your disk drive broke (or your computer) you could get everything back as of the time you made it. Any changes you made or files you added since you made the backup will be lost if you restore it.
Windows system image has been fine for me although it is slower and more inconvenient to use than other options. Macrium which is free (for most use cases) also works fine and is favored by lots of people. Don't buy the paid version yet. The free version will make a perfectly good system image that you can use to restore your system in case of failure. The paid version has features (like backing up certain folders or differential images) that you probably don't need to start with.
You can (if you want) make both a Windows system image and a macrium image. You can also make copies on various disks and give them to your neighbors or friends in case your house burns down. Only you can decide how important your data is to you.
I've recently moved from Macrium to Acronis as it is faster and makes smaller images than Macrium but each to their own. It depends what features you want and what interface you like. They all work fine - just pick one, make a backup and test you can restore it. Then put a copy somewhere safe.
Restore points are a separate thing. They don't hold an snapshot of your whole system. They store a small subset of (generally system related) files. You can revert to a restore point and it will backout changes you have made to settings or upgrades you have made while leaving your user files intact. You can also use them to revert to a previous version of a certain file. They have a place (probably historical) but you can't use them to recreate your system in case of a disk failure. Note that after version releases Windows 10 deletes all restore points and they are disabled by default. I leave system restore turned on but apart from testing I've not actually used system restore since Windows 7.
Hope that helps a bit.