This is a garbage UI and it looks like it was designed using "dark patterns" to ensure that nobody uses it. Look how many clicks (18 clicks, I counted) one needs to do in the correct sequence without a single mistake, and how many distracting and misleading options are there. It is a sabotage, it is a rebellion. Technically, yes, Apple can claim that they have "safe mode", but in practice it is unusable. Apple clearly doesn't want parents to enable restrictions, for reasons I do not understand, probably they just hate children or people having a family.

Your video actually has the opposite effect: it shows that there are no (easy) ways for parents to protect the children and government regulation is necessary.

The UI should be a single checkbox named "child mode" and small, gray link "configure" that opens the menu from the video. The parent just clicks the checkbox, and sets up a password, a fingerprint or paired device to unlock the mode. That's all. After this only government-approved apps and websites can be opened (parent may edit the white list if they are ok with navigating through a maze of ten thousand menus) and children are perfectly safe. Government may white-list only apps and sites that implement measures for content safety and may not add non-compliant apps.

Also I hate watching vertical videos on a laptop.

Famously these controls basically don’t work.