Skipping matches when using SharePoint HTTP

[CCentofanti]

I have a Power Automate flow that gets rows from an Excel sheet, finds the matching item in a SharePoint list using a column from Excel, and makes updates via SharePoint HTTP. However, I've found that it updates all items in the row, even if the values it's updating are a match. Is there a way to prevent it from counting as an update (e.g. modified become now, modified by becomes me, version history goes up by one if applicable) if it's not actually updating anything? These are my current headers in the SharePoint HTTP call.

{

  "Accept": "application/json; odata=nometadata",

  "IF-MATCH": "*",

  "X-HTTP-METHOD": "MERGE",

  "Content-Type": "application/json; odata=nometadata"

}

Thanks in advance.