Blu-ray

This disc defaults to a lossless 5.1 remix, however in the setup menu, the original mono mix is included as a lossy alternative for the first time since the dawn of home video. The film was given a stereo remix very early on and remained stuck that way for decades.

Eureka Blu-ray slightly better than Kino Lorber. Note that the Eureka release has ~6 seconds of cuts due to BBFC rules.

Eureka has original mono.

Sandpiper Pictures Blu-ray is likely the same as previous Twilight Time OOP Blu-ray

See caps https://slow.pics/c/lVdZaG0W

Arrow/Kino Lorber/Carlotta all very similar

Potemkine France Blu-ray is a recent 4K restoration compared to the old Japan Imagica Blu-ray, it unfortunately also has the eclair teal https://slow.pics/c/BIIWAPtO

Given that it's a Janus theatrical release, an English-friendly and Criterion release can be expected in the near future.

(Britain release only has 5.1)

The Paramount 4K "restoration" is a desecration. It has completely revisionist color timing, harsh HDR, treatment of stock footage, bad encoding, selective DNR and grain management so bad that the entire screen frequently freezes up with only characters moving around in grain soup. It is so bad that the film's restorer Robert Harris publicly washed his hands of it saying essentially the 2007 restoration (with Willis and Coppola supervising) is how the film was intended and made. This is Paramount's modern version done their way. The new 1080p SDR Blu-rays in print are the crap 4K desecration master with the same problems still there just harder to spot and with crap encodes.
The mono option is an unnecessarily processed version of the lossy mono from the 2008 Blu-ray. The 2008 Blu-ray of the 2007 Coppola Restoration while an imperfect outdated disc is LIGHT YEARS better than this 4K desecration. The only truly major issue is that it is very slightly redder than the 2007 finished master as seen on DCPs. The lossy mono on the 2008 Blu-ray is the best version of the original mix known to exist as it is better than the late 80's mastering for VHS and LaserDisc.
DFIC review of the hideous crap 4K Blu-rays: https://youtu.be/0uw6-Kcy_UA?si=ob1nDg0wTCvemjH0

Eureka MoC marginally better than Criterion