Warner Bros 4K Blu-ray

Warner Bros 4K Blu-ray caps. The HDR10 base layer is bright, so I'd recommended to watch it in Dolby Vision.

4K Blu-ray/Blu-ray is missing the isolated score and Martian dub from the DVD

Severin 4K Blu-ray

Severin 4K Blu-ray see comparison but HDR is on the bright side

Japan Disney 4K Blu-ray for the original Japanese audio with the best English subtitle translation

US Funimation Blu-ray for the Bandai dub
Manga Entertainment UK Blu-ray for the Manga Entertainment dub

Italy Dynit Blu-ray

Japan "4K Remastered" Disney Blu-ray has the original 6.1 mix

Japan Disney 4K Blu-ray for the DTS:X remix

Funimation US Blu-ray for the Bandai dub

Manga Entertainment UK Blu-ray for the Manga Entertainment dub

Italy Dynit Blu-ray has the best picture quality but has no English subtitles or original theatrical 6.1 mix.

All "4K Remastered" and 4K Blu-ray releases (including from Disney) are taken from a 35mm filmout rather than the original digital source, and then heavily DNR'd, destroying original detail and making lines smearier than before. The Japan Disney 4K Blu-ray is the least bad presentation of the 4K remaster, being encoded with a very healthy bitrate and HDR10+ metadata, and with a top-notch DTS:X remix, with the original 6.1 mix included on the pack-in "4K Remastered" Blu-ray.

The film has multiple English subtitle translations, and the Disney subtitles done by Linda Hoaglund and Judith Aley with Aura are often seen as the best translation, with these subtitles present on the Japan Disney 4K Blu-ray, making this the definitive option for viewers who want to watch the film in Japanese with English subtitles.

Bandai Japan 4K Blu-ray

All the Anime FRA 4K Blu-ray | Caps comparison: Ghost in the Shell (1995) | Slowpoke Pics

All the Anime FRA 4K Blu-ray

The All the Anime FRA and the Lionsgate USA run to the same frame and come from the same source, while the Bandai JPN is a separate assembly, and these three discs do not share a master and are graded differently. The French and the Japanese hold the same hue throughout; the Lionsgate is shifted, and by different amounts from scene to scene. The Lionsgate is the only Dolby Vision Profile 7 FEL (when the All the Anime is Dolby Vision Profile 7 MEL and The Bandai  is only HDR10) and the extra coding precision is genuine, but it buys nothing here: the grain dithers the gradients on its own and none of the three discs bands.

What separates them is texture, and it is not close. The All the Anime FRA is very clearly superior to both others: far more fine detail, tighter edges with no sign of sharpening, and real gradation in the shadows where the other two simply go to black. It is a beautiful master, filmic and untouched. Both the US and the Japanese discs have had DNR applied: flat areas and edges are smoothed alike, so a great deal of the texture the French keeps is simply gone. The Lionsgate also falls apart on darker shots, and the Bandai is the softest of the three on top of a very conservative grade.
The French disc is the one to get, by a wide margin.
Caps comparison: Ghost in the Shell (1995) | Slowpoke Pics

Be warned that the All the Anime FRA is not English-friendly at all: it carries no English audio track and no English subtitles while being well served on the Japanese side, with the 6.1 mix from Ghost in the Shell 2.0 and the original 2.0 mix, both retaining the original 1995 end credits music, alongside the modern Dolby Atmos track.

Worth noting: the KSM GER release may carry the same master as the All the Anime FRA, but without a copy on hand I can neither confirm nor rule it out.