Triangular Indicator signal

[Leafs1201]

Hi all, anybody know what the triangular indicator signal is on my Ultra, it's the far left one next to the WiFi

 

[Lecrae116]

Hi all, anybody know what the triangular indicator signal is on my Ultra, it's the far left one next to the WiFi View attachment 326690

You have data saver turned on.

 

[Leafs1201]

You have data saver turned on.

Thank you.