100% linear 32bit workflow, full EV range, 20k resolution. USE UNCOMPRESSED 32bit ORIGINAL FILE FOR THE BEST RESULT.

Tutorial on how to set nodes with JPG background panorama:
https://youtu.be/aj0LoQLjgYo
Color-graded 20k JPG panorama:
https://drive.google.com/drive/folders/1nN6W8OxH3rs1tgrcKNzamStRCvG4-2l4

10:20, Summer, sunny, heavy cloud cover. Wild field with high grass on the outskirts of Warsaw. Well lit single family houses and trees on the Horizon. Closest building about 200 meters away from the the camera.

Sun is unclipped, so in Cycles, you don't need any light source, other than this HDRI for realistic shadows.

Methodology:
DLSR with 12 mm lens, tripod with pano head:
7 expositions of the environment with 2 EV spacing (140 photos) + 7 expositions with 2 EV spacing of only the sun with ND1000 (10 stops) filter + 7 expositions with ND1000 stacked with ND4000 filter (10+12=22 stops).