Samsung A71: what does this icon in the status bar mean?

[Puccini]

What does this icon in the status bar of the smartphone Samsung A71 with Android 11 mean?  

 

It shows in the status bar at the top of the screen when I swipe down once from the top.

 

This icon is not listed under Indicator Icons on pages 50 and 51 of the User Manual

https://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=UNI_UK&OriginYN=N&ModelType=N&ModelName=SM-A715F%2FDS&CttFileID=8006236&CDCttType=UM&VPath=UM%2F202103%2F20210312224617778%2FSM-A715F_UM_EU_RR_Eng_Rev.1.0_210222.pdf

 

and a Google image search gives no result for it.

[The Hammer2021]

I assume upload and download related, or sending and receiving data

[ProbPossConf]

It means you can swipe up/down of the status bar to make it easy to turn on/off the different icons, i.e. Bluetooth.

[ballpoint]

 

[Upnotover]

[Puccini]

Thank you very much, ballpoint and Upnotover.

 

I checked now and saw that data saver was on, which means that I must have switched it on by mistake since I have not yet used even 50% of my monthly package. I hadn't noticed that function before.