Windows – Delete the Email attachments folder in OneDrive

In OneDrive, a folder recently appeared called "Email attachments":

I have no use of this folder so I would like to delete it, so I simply deleted it from the OneDrive folder in Windows Explorer, and it immediately synchronized that with OneDrive, deleting the folder in OneDrive also, just like it should. The problem is that a while later, the folder appeared again. So I deleted it again. And it appeared again. And so on.

I finally decided to search for a solution on Google, and I found out that the folder is created by Outlook and that it's created every time you send an email from Outlook. Except that I use Gmail, not Outlook, and my OneDrive account is connected to my Gmail account. Anyway, when searching, I found this where it says to change the settings in Outlook. I tried to do so, but I could not find the setting in question in Outlook (the person asking that couldn't either).

I can think of several workarounds, like hiding this folder by doing Properties and check Hidden, but I would like to delete it completely and permanently.

Is there any way to delete this folder without it reappearing?

Edit

Thanks to an answer that should have been posted as a comment and that got deleted, I noticed that this folder is created whenever I use the OneDrive app for iPhone. However, I can't find any setting in the app that disables this feature. Is there any way to keep this folder from reappearing?