Dell had a Linux line some years ago where everything worked out of the box, never got the popularity needed to keep it alive.
System76 has Pop!_OS so that they can provide great out of the box experience with their computers, but they are not as big as other vendors.
A good way to really get a product like that to mass market is to make it available in general stores (Walmart, Best Buy, Etc.), the problem is that most of those customers will not understand why their system is so different and they cannot install that MS Office 2003 they have always used, or that Norton Antivirus that their cousin’s son recommended to them 10 years ago that was working fine on their old computer.
And then you have the younger generations that use every other device but a computer. They’d rather do all their school and college work on their phones and tablets rather than open a laptop, if they even know how to use a computer (you’d be surprised how many don’t even know how to use a computer).
Brave does support opening tabs from other devices, sync works good so long as it always has at least 1 device in the sync chain, so if you only have 1 device and have to reinstall it the settings might be lost, but if you have 2 devices and reinstall one the settings are still saved whenever you rejoin the chain. The reason is there are no accounts saved in brave, so the only way to ID your browser is by the sync chain. If the sync chain has no devices it may be removed from the sync servers.
All of the crypto rewards stuff can be disabled with 1 switch, and a second switch if you also want to turn off wallet, but it’s not really active unless you configure it. Rewards is there as a way for them to make money without having to make Google or Bing the default search engine as other browsers do.
Brave is a great browser, but Firefox is also great and very configurable. And thanks to this thread I learned that FF’s interface can be customized, which was one of my main reasons not to use it anymore. I’ll play with it again, it’s important to have a non-chromium based browser as an alternative.