There are three unique and popularly used arrangements in reference to "Panis Angelicus".
The most famous version is the works of César Franck in 1872 because of its intoxicating music and inventive melodies. His version has been recorded at least a hundred times.
The second one was crafted by virtuoso Camille Saint-Saëns. His version has a slightly slower tune, which picks up a moderate pace towards the end and offers a simple yet brilliantly haunting melody.
The last rendition was introduced in June 1919 by André Caplet. Caplet's version uses a harmonium as the base organ along with harp, cello, violin, and mezzo-soprano . It was deemed as underrated of the three and yet exuded its very own captivating aura.
Read more about it at: https://galaxymusicnotes.com/pages/learn-about-the-music-of-panis-angelicus