I think that if you actually try the new scheme, you will find it’s much easier than the old one. Much less jumping around, and no drilling down. Now, everything you need to know or do as you set up an account, an asset, or an employee is on the same form/page. And pre-start-date invoices for customers and suppliers don’t have to be entered differently from regular invoices. They are entered in the regular tabs and just get dates before the start date. Remember also, you only do it once. So there is no reason to be going back to the Starting Balances page in Settings.
Interestingly, since the change was introduced 3 weeks ago, there have been no questions on the forum about how to use it. There have only been a couple about how to find starting balances since that heading disappeared from Settings. There were routinely questions under the old system.