If you want to clear MS Teams cache, you could refer to the following ways
Instructions
Fully exit the Microsoft Teams' desktop client. To do this, either right-click Teams from the Icon Tray and select ‘Quit’, or run Task Manager and fully kill the process.
Go to File Explorer, and type in %appdata%\Microsoft\teams.
Once in the directory, you’ll see a few of the following folders:
From ‘Application Cache’, go to Cache and delete any of the files in the Cache location. “%appdata%\Microsoft\teams\application cache\cache”
From ‘Blob_storage’, delete any files that are located in here if any. “%appdata%\Microsoft\teams\blob_storage”
Within ‘Cache’, delete all files “%appdata%\Microsoft\teams\Cache”
Within ‘databases’, delete all files “%appdata%\Microsoft\teams\databases”
Within ‘GPUCache’, delete all files “%appdata%\Microsoft\teams\GPUcache”
Within ‘IndexedDB’, delete the .db file “%appdata%\Microsoft\teams\IndexedDB”
Within ‘Local Storage’, delete all files “%appdata%\Microsoft\teams\Local Storage”
Lastly, from ‘tmp’, delete any file “%appdata%\Microsoft\teams\tmp”
Once finally done clearing, you can now restart Teams from your local desktop and all cache will be cleared from the desktop app.