samsung – What is this random arrow in the centre left of my Chrome screen?

Arbitrarily an arrow appears on the center left of my mobile Chrome browser. I cannot even click this arrow. It doesn’t really affect any underlying features of my web browsing, at least not on the obvious. It is just a bothering little arrow, which has no reason in being there.

My phone details are:

My phone is: Samsung Galaxy M31
Model: SM-M315F/DS
Application version: Chrome 92.0.4515.131
Operating system: Android 11; SM-M315F Build/RP1A.200720.012

Attaching screenshot of my Chrome browser where the arrow can be seen.Screenshot with the arrow marked with question marks

As far as I can recall, this arrow disappears without any apparent activity.
Had anyone seen this? Or can shed some light as to what this is? And if it can be removed?