I'll provide information about your profit and loss report when you unlink accounts, Groundupsportsll.
Unlinking accounts in QuickBooks Online (QBO) does not automatically reset or refresh your Profit and Loss (P&L) report. It reflects transactions based on the linked accounts and the data available for its generation. However, they will stop flowing from the moment you disconnect them.
If you want to refresh your report after unlinking the account, you'll have to go back to the report and rerun it. This will update the report to reflect the current state of your accounts.
Additionally, you might want to check these articles and learn to personalize your reports and save their current customizations in QBO: