I agree that this is a video of someone who doesn't understand the underlying principles of the feature. "Optimise storage" keeps as much locally synced as it can when you have enough headroom on your storage anyhow. Why the stress to get free local storage, when you have plenty of headroom anyways? - Then browsing within iCloud drive will be much slower. You will still have thumbs and metadata, but QuickLooking or opening them will be delayed, as it needs to go through the bottleneck aka as the Internet, your expensive SSD not utilized to its full potential. The only valid use case is, when you know you will need e.g. 200GB locally soon for a project, e.g. a huge video project. But then also your proposed method is not that clever. Better create an APFS container with a certain quota, which is then guaranteed for your video project, with the remaining free space then getting narrower or null, forcing the iCloud Drive dynamic storage allocation algorithms to kick in aggressively, still keeping your most recent / most used files, and removing elder / less used files.

They do this on purpose mate,its to force people to buy icloud storage or any other forms of storage

And how do I know that this command worked? How long does it take?

@@PandassauroZ Several ways: 1) Test it out by making a folder in iCloud and adding 1 file. Download the file. The download from iCloud symbol on the file name should disappear. Then use the terminal command. Afterwards, that symbol should reappear on the file name (meaning it was evicted). 2) For larger folders or larger file sizes, you can open storage utility and watch your document’s storage GB measurement drop but sometimes you have to reopen it to refresh changes. 3) I’m a script kitty but there’s certainly more involved methods of tracking file changes using terminal. For massive folders or a list of them, the command sometimes hangs (it times out and doesn’t completely remove all files). In this case, just keep running it until all files are evicted. You may have to repeat this process every once in awhile since iCloud may forcibly push them back to your device over time. I have the command set up to run daily for that reason.

Please…. Just no. Stop making misleading coding commands to mess up peoples computers

You are right ! he is an idiot.