Format pane missing

Hi , Prakash_N 

According to your screenshot, in the 1st picture, it seems that you select the page and it is a page configuration.
We need to select a visual .

We’ve updated the format tab icon and added a descriptive subtitle to make it easier to find the Format pane. Previously, it was hard to find the format page settings. We’ve added a new Format page icon that you see when you haven't selected any visuals, and the canvas is ready for formatting.

We've split the long list of formatting cards into two categories: visual specific vs. general settings. The general settings contain cards that affect the visual container and are consistent across all visual types. The visual specific settings contain cards that pertain only to the visual type you’re currently working with. This change allows for easier adjustment of general settings when you click across visuals, better scannability and discovery of visual specific cards, and helps new users learn where to find what.

For more information, you can refer to this document:
The new Format pane in Power BI - Power BI | Microsoft Learn

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

Best Regards,

Aniya Zhang

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