File Repository better in Teams or Sharepoint?

[JanStewart]

We have a small, startup company looking for the best place to store our documents, PPTs, agreements...

Some of our documents are stored in Teams, under different Teams.  Some of our documents are stored in Sharepoint via File Explorer and OneDrive.  It is time consuming and difficult to find documents.  Is it better to save files in a repository in Sharepoint and access via File Explorer / Onedrive or save files in Teams?  What should be taken into consideration when choosing?

[#2]

Are you aware that files in Teams Channels are stored behind the scenes in SharePoint sites?

[#3]

@Juan Carlos González Martín  Yes, I am... however I find it easier and more control if I create my folder structure using File Explorer rather than in Teams..  Why would I store my files in Teams, when I have more control over them in File Explorer?