Can I remove this pipe coming out of my lawn?

We moved in to our house a couple years ago and were not told too much about a pipe that sticks out of our backyard.

We are on a septic system and this pipe is sticking out from our leech field. The other houses on our block all have similar setups yet none (that I know) have a pipe coming up like ours.

It was suggested to me that this may be safe to remove, or at least remove, cover the whole for a few weeks, and as long as there's no issues, then remove.

It's not attached to anything and I can pretty easily pull it out and put it back in, although I've tended not to touch it much.

Pipe: https://imgur.com/a/yrd6pYN Hole in the ground: https://imgur.com/a/NMXurUH

Can anyone provide any insight here please?