Teams Chat resizing jpeg images

[whatevers]

Hi, so when I upload a jpeg image to the Teams Chat, the recipient receives a different resolution file than I sent, so Teams is automatically re-sizing the file, which I do not want.  I have temporarily cured this by no longer using jpegs, because TIFFs or PSD files are not affected.  Is there a way to turn this feature off?  I do not want Teams wrecking the images I send without my knowledge.

[#2]

I know using the mobile app there’s a setting for this under:
Settings- “data and storage” (something like that)

Adam

Adam

[#3]

@adam deltinger  Thanks for your reply!

The clients having this issue are using desktops, mostly Macs.

I looked at my iPhone and there is no setting for data under Teams settings.  And under iPhone's Storage setting, Teams is taking up some room but there are no options as far as I can tell other than to offload the app.

I can't even find documentation about this on Microsoft's websites.  Maybe I'm using the wrong search terms?