I'm guessing no, but is there any way to show the actual values of GL Impact on a Saved Search for System Notes instead of just having a "View" button?

I'm pretty sure not. I'd be interested though if someone has a way.

What's the use case? Lots of tools exist to easily join two search types: system notes and transactions, as a solution.

Basically a report was submitted to tax authorities that the balances don't tie to currently. So we want to see where the change occurred

We might be able to help - I've done similar projects where we analyze all the transaction level detail against summary/batch type amounts to identify the variances. We can do this in our AI agent platform for NetSuite. If this is of interest, shoot me an interest and we can chat further: josh.lasov@cauzzy.ai