Not every film. It was widely reported that Oppenheimer was color graded photochemically, and the 65mm film physically spliced (the editor of course worked in Avid with digital film scans). This means that 70 mm screenings were projecting a fully analog end-to-end pipeline. The exception, of course, is the visual effects shots, which went through a digital intermediary.

The same seems to be true of The Odyssey, although the reporting is less clear as of now, and I suspect there are many more visual effects shots than Oppenheimer.