Icon for PDF showing in ODB vs in Teams Chat

Good day @Deyson A, 

I checked this from my side as well, and I can confirm that I’m seeing the same behavior you described. The PDF icon does appear differently in OneDrive for Business and SharePoint compared to how it shows in a Teams chat.  

Based on what I know, this is considered normal behavior. Different Microsoft 365 surfaces such as OneDrive, SharePoint, and Teams use their own file type icon libraries from Microsoft, such as Fluent UI or Office UI Fabric. Because each surface is designed for a different experience, the way file icons are displayed can vary. As a result, even though it’s the same PDF file, the icon can look different depending on whether you’re viewing it in Teams, OneDrive, or SharePoint.  

Normally, a UI problem would only be suspected if the icon was broken, failed to load, or appeared corrupted. In this case, the icon is displaying properly and the file is still correctly identified and accessible, so there’s no indication of an issue.  

Thank you so much for paying close attention to this and taking the time to ask. This is something that very few people usually notice, and I hope this response will be helpful not only for you but also for other users who may have the same concern.

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