The model pictured was printed in Bambu Lab Basic PETG.
3 walls, 20% Gyroid infill.
This needs to be printed pretty slow if using PETG because of the holes. I slowed the default print settings down significantly and the holes were still less than perfect. I'm still dialing in my PETG speeds. This will likely be far easier to print in PLA at faster speeds.
I've included the 3mf file I used on my P1S in Bambu Studio for the pictured print, but would recommend further tweaks to get the holes looking better.
The author remixed this model.
An extension of the original model to double the size without any additional changes.