I don't know if /u/ku-to is the photographer. But I know is from Samuel Zeller. It is published on unsplash and I think it is pretty wide used on the internet https://unsplash.com/@samuelzeller?photo=j0g8taxHZa0
To be honest it was all done on my phone. The Galaxy S10+ has a pretty amazing camera. Then some minor manipulation with Snapseed and Mirror Lab.