@mmurrell1  RE: The utility bill is dated 03/05/2023 but is for services from 02/01/2023 to 02/28/2023. The bill would be entered into QBO with the actual billing date (03/05/2023) and would therefore show up as an expense on the March P&L. This is totally wrong. 

It seems exactly right to me. There is no requirement I've ever heard of to record expenses from a periodic bill as of the date that service is rendered - or in any case the date the vendor thinks it was. By that measure you'd need to record an expense on every day of the utility bill's period.