I am not personally familiar with that fixture. Did you post a comment on the IG post to StudioMcgee, asking for details? Did you visit their blog post to see if they posted details there? Perhaps try using TinEye for an internet image search to find the details on that fixture. If you have a lighting showroom near you, show them the image and perhaps they can help. Good luck!

Is this it?

https://www.brendanravenhill.com/detail/7797/hood-chandelier

The Studio McGee one:

The Hood one:

I wonder if the arms are adjustable, or it’s just the angles that make the arms look slightly different.

Close enough! Thanks you so much !